mirror of https://github.com/encounter/SDL.git
605 lines
22 KiB
C
605 lines
22 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/**
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* \file SDL_stdinc.h
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*
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* This is a general header that includes C language support.
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*/
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#ifndef SDL_stdinc_h_
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#define SDL_stdinc_h_
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#include "SDL_config.h"
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_STDIO_H
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#include <stdio.h>
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#endif
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#if defined(STDC_HEADERS)
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# include <stdlib.h>
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# include <stddef.h>
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# include <stdarg.h>
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#else
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# if defined(HAVE_STDLIB_H)
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# include <stdlib.h>
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# elif defined(HAVE_MALLOC_H)
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# include <malloc.h>
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# endif
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# if defined(HAVE_STDDEF_H)
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# include <stddef.h>
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# endif
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# if defined(HAVE_STDARG_H)
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# include <stdarg.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
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# include <memory.h>
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# endif
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#ifdef HAVE_WCHAR_H
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# include <wchar.h>
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#endif
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#if defined(HAVE_INTTYPES_H)
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# include <inttypes.h>
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#elif defined(HAVE_STDINT_H)
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# include <stdint.h>
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#endif
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#ifdef HAVE_CTYPE_H
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# include <ctype.h>
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#endif
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#ifdef HAVE_MATH_H
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# if defined(__WINRT__)
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/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
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WinRT. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
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for more information.
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*/
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# define _USE_MATH_DEFINES
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# endif
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# include <math.h>
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#endif
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#ifdef HAVE_FLOAT_H
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# include <float.h>
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#endif
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#if defined(HAVE_ALLOCA) && !defined(alloca)
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# if defined(HAVE_ALLOCA_H)
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# include <alloca.h>
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# elif defined(__GNUC__)
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# define alloca __builtin_alloca
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# elif defined(_MSC_VER)
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# include <malloc.h>
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# define alloca _alloca
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# elif defined(__WATCOMC__)
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# include <malloc.h>
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# elif defined(__BORLANDC__)
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# include <malloc.h>
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# elif defined(__DMC__)
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# include <stdlib.h>
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# elif defined(__AIX__)
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#pragma alloca
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# elif defined(__MRC__)
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void *alloca(unsigned);
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# else
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char *alloca();
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# endif
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#endif
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/**
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* The number of elements in an array.
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*/
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#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
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#define SDL_TABLESIZE(table) SDL_arraysize(table)
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/**
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* Macro useful for building other macros with strings in them
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*
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* e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
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*/
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#define SDL_STRINGIFY_ARG(arg) #arg
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/**
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* \name Cast operators
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*
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* Use proper C++ casts when compiled as C++ to be compatible with the option
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* -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
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*/
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/* @{ */
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#ifdef __cplusplus
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#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
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#define SDL_static_cast(type, expression) static_cast<type>(expression)
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#define SDL_const_cast(type, expression) const_cast<type>(expression)
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#else
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#define SDL_reinterpret_cast(type, expression) ((type)(expression))
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#define SDL_static_cast(type, expression) ((type)(expression))
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#define SDL_const_cast(type, expression) ((type)(expression))
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#endif
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/* @} *//* Cast operators */
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/* Define a four character code as a Uint32 */
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#define SDL_FOURCC(A, B, C, D) \
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((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
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(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
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(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
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(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
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/**
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* \name Basic data types
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*/
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/* @{ */
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#ifdef __CC_ARM
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/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
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#define SDL_FALSE 0
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#define SDL_TRUE 1
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typedef int SDL_bool;
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#else
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typedef enum
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{
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SDL_FALSE = 0,
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SDL_TRUE = 1
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} SDL_bool;
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#endif
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/**
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* \brief A signed 8-bit integer type.
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*/
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#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
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#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
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typedef int8_t Sint8;
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/**
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* \brief An unsigned 8-bit integer type.
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*/
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#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
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#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
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typedef uint8_t Uint8;
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/**
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* \brief A signed 16-bit integer type.
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*/
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#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
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#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
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typedef int16_t Sint16;
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/**
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* \brief An unsigned 16-bit integer type.
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*/
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#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
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#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
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typedef uint16_t Uint16;
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/**
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* \brief A signed 32-bit integer type.
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*/
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#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
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#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
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typedef int32_t Sint32;
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/**
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* \brief An unsigned 32-bit integer type.
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*/
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#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
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#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
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typedef uint32_t Uint32;
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/**
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* \brief A signed 64-bit integer type.
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*/
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#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
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#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
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typedef int64_t Sint64;
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/**
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* \brief An unsigned 64-bit integer type.
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*/
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#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
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#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
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typedef uint64_t Uint64;
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/* @} *//* Basic data types */
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/* Make sure we have macros for printing 64 bit values.
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* <stdint.h> should define these but this is not true all platforms.
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* (for example win32) */
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#ifndef SDL_PRIs64
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#ifdef PRIs64
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#define SDL_PRIs64 PRIs64
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#elif defined(__WIN32__)
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#define SDL_PRIs64 "I64d"
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#elif defined(__LINUX__) && defined(__LP64__)
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#define SDL_PRIs64 "ld"
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#else
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#define SDL_PRIs64 "lld"
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#endif
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#endif
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#ifndef SDL_PRIu64
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#ifdef PRIu64
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#define SDL_PRIu64 PRIu64
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#elif defined(__WIN32__)
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#define SDL_PRIu64 "I64u"
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#elif defined(__LINUX__) && defined(__LP64__)
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#define SDL_PRIu64 "lu"
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#else
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#define SDL_PRIu64 "llu"
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#endif
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#endif
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#ifndef SDL_PRIx64
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#ifdef PRIx64
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#define SDL_PRIx64 PRIx64
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#elif defined(__WIN32__)
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#define SDL_PRIx64 "I64x"
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#elif defined(__LINUX__) && defined(__LP64__)
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#define SDL_PRIx64 "lx"
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#else
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#define SDL_PRIx64 "llx"
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#endif
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#endif
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#ifndef SDL_PRIX64
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#ifdef PRIX64
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#define SDL_PRIX64 PRIX64
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#elif defined(__WIN32__)
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#define SDL_PRIX64 "I64X"
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#elif defined(__LINUX__) && defined(__LP64__)
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#define SDL_PRIX64 "lX"
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#else
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#define SDL_PRIX64 "llX"
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#endif
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#endif
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/* Annotations to help code analysis tools */
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#ifdef SDL_DISABLE_ANALYZE_MACROS
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#define SDL_IN_BYTECAP(x)
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#define SDL_INOUT_Z_CAP(x)
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#define SDL_OUT_Z_CAP(x)
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#define SDL_OUT_CAP(x)
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#define SDL_OUT_BYTECAP(x)
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#define SDL_OUT_Z_BYTECAP(x)
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#define SDL_PRINTF_FORMAT_STRING
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#define SDL_SCANF_FORMAT_STRING
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
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#else
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#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
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#include <sal.h>
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#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
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#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
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#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
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#define SDL_OUT_CAP(x) _Out_cap_(x)
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#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
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#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
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#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
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#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
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#else
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#define SDL_IN_BYTECAP(x)
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#define SDL_INOUT_Z_CAP(x)
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#define SDL_OUT_Z_CAP(x)
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#define SDL_OUT_CAP(x)
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#define SDL_OUT_BYTECAP(x)
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#define SDL_OUT_Z_BYTECAP(x)
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#define SDL_PRINTF_FORMAT_STRING
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#define SDL_SCANF_FORMAT_STRING
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#endif
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#if defined(__GNUC__)
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
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#else
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#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
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#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
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#endif
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#endif /* SDL_DISABLE_ANALYZE_MACROS */
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#define SDL_COMPILE_TIME_ASSERT(name, x) \
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typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
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/** \cond */
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
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SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
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SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
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SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
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SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
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SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
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SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
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SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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/** \endcond */
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/* Check to make sure enums are the size of ints, for structure packing.
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For both Watcom C/C++ and Borland C/C++ the compiler option that makes
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enums having the size of an int must be enabled.
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This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
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*/
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/** \cond */
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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#if !defined(__ANDROID__)
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/* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
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typedef enum
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{
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DUMMY_ENUM_VALUE
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} SDL_DUMMY_ENUM;
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SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
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#endif
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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/** \endcond */
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef HAVE_ALLOCA
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#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
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#define SDL_stack_free(data)
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#else
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#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
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#define SDL_stack_free(data) SDL_free(data)
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#endif
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extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
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extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
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extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
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extern DECLSPEC void SDLCALL SDL_free(void *mem);
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typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
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typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
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typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
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typedef void (SDLCALL *SDL_free_func)(void *mem);
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/**
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* \brief Get the current set of SDL memory functions
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*/
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extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
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SDL_calloc_func *calloc_func,
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SDL_realloc_func *realloc_func,
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SDL_free_func *free_func);
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/**
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* \brief Replace SDL's memory allocation functions with a custom set
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*
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* \note If you are replacing SDL's memory functions, you should call
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* SDL_GetNumAllocations() and be very careful if it returns non-zero.
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* That means that your free function will be called with memory
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* allocated by the previous memory allocation functions.
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*/
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extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
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SDL_calloc_func calloc_func,
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SDL_realloc_func realloc_func,
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SDL_free_func free_func);
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/**
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* \brief Get the number of outstanding (unfreed) allocations
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*/
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extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
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extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
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extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
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extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
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extern DECLSPEC int SDLCALL SDL_abs(int x);
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/* !!! FIXME: these have side effects. You probably shouldn't use them. */
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/* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
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#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
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#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
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extern DECLSPEC int SDLCALL SDL_isdigit(int x);
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extern DECLSPEC int SDLCALL SDL_isspace(int x);
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extern DECLSPEC int SDLCALL SDL_toupper(int x);
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extern DECLSPEC int SDLCALL SDL_tolower(int x);
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extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
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#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
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#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
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/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
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SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
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{
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#if defined(__GNUC__) && defined(i386)
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int u0, u1, u2;
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__asm__ __volatile__ (
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"cld \n\t"
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"rep ; stosl \n\t"
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: "=&D" (u0), "=&a" (u1), "=&c" (u2)
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: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
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: "memory"
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);
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#else
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size_t _n = (dwords + 3) / 4;
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Uint32 *_p = SDL_static_cast(Uint32 *, dst);
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Uint32 _val = (val);
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if (dwords == 0)
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return;
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switch (dwords % 4)
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{
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case 0: do { *_p++ = _val; /* fallthrough */
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case 3: *_p++ = _val; /* fallthrough */
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case 2: *_p++ = _val; /* fallthrough */
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case 1: *_p++ = _val; /* fallthrough */
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} while ( --_n );
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}
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#endif
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}
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extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
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extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
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extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
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extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
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extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
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extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
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extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
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extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
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extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
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extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
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extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
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extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
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extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
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extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
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extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
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extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
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extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
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extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
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extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
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extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
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extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
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extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
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extern DECLSPEC double SDLCALL SDL_atof(const char *str);
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extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
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extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
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extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
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extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
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extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
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extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
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extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
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extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
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extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
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extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
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extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
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extern DECLSPEC int SDLCALL SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ... ) SDL_PRINTF_VARARG_FUNC(3);
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extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
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#ifndef HAVE_M_PI
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#ifndef M_PI
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#define M_PI 3.14159265358979323846264338327950288 /**< pi */
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#endif
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#endif
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extern DECLSPEC double SDLCALL SDL_acos(double x);
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extern DECLSPEC float SDLCALL SDL_acosf(float x);
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extern DECLSPEC double SDLCALL SDL_asin(double x);
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extern DECLSPEC float SDLCALL SDL_asinf(float x);
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extern DECLSPEC double SDLCALL SDL_atan(double x);
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extern DECLSPEC float SDLCALL SDL_atanf(float x);
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extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
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extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y);
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extern DECLSPEC double SDLCALL SDL_ceil(double x);
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extern DECLSPEC float SDLCALL SDL_ceilf(float x);
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extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
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extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
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extern DECLSPEC double SDLCALL SDL_cos(double x);
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extern DECLSPEC float SDLCALL SDL_cosf(float x);
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extern DECLSPEC double SDLCALL SDL_fabs(double x);
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extern DECLSPEC float SDLCALL SDL_fabsf(float x);
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extern DECLSPEC double SDLCALL SDL_floor(double x);
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extern DECLSPEC float SDLCALL SDL_floorf(float x);
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extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
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extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
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extern DECLSPEC double SDLCALL SDL_log(double x);
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extern DECLSPEC float SDLCALL SDL_logf(float x);
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extern DECLSPEC double SDLCALL SDL_log10(double x);
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extern DECLSPEC float SDLCALL SDL_log10f(float x);
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extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
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extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
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extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
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extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
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extern DECLSPEC double SDLCALL SDL_sin(double x);
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extern DECLSPEC float SDLCALL SDL_sinf(float x);
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extern DECLSPEC double SDLCALL SDL_sqrt(double x);
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extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
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extern DECLSPEC double SDLCALL SDL_tan(double x);
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extern DECLSPEC float SDLCALL SDL_tanf(float x);
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/* The SDL implementation of iconv() returns these error codes */
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#define SDL_ICONV_ERROR (size_t)-1
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#define SDL_ICONV_E2BIG (size_t)-2
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#define SDL_ICONV_EILSEQ (size_t)-3
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#define SDL_ICONV_EINVAL (size_t)-4
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/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
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typedef struct _SDL_iconv_t *SDL_iconv_t;
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extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
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const char *fromcode);
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extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
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extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
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size_t * inbytesleft, char **outbuf,
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size_t * outbytesleft);
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/**
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* This function converts a string between encodings in one pass, returning a
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* string that must be freed with SDL_free() or NULL on error.
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*/
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extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
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const char *fromcode,
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const char *inbuf,
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size_t inbytesleft);
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#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
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#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
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#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
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/* force builds using Clang's static analysis tools to use literal C runtime
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here, since there are possibly tests that are ineffective otherwise. */
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#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
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#define SDL_malloc malloc
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#define SDL_calloc calloc
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#define SDL_realloc realloc
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#define SDL_free free
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#define SDL_memset memset
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#define SDL_memcpy memcpy
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#define SDL_memmove memmove
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#define SDL_memcmp memcmp
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#define SDL_strlen strlen
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#define SDL_strlcpy strlcpy
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#define SDL_strlcat strlcat
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#define SDL_strdup strdup
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#define SDL_strchr strchr
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#define SDL_strrchr strrchr
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#define SDL_strstr strstr
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#define SDL_strcmp strcmp
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#define SDL_strncmp strncmp
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#define SDL_strcasecmp strcasecmp
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#define SDL_strncasecmp strncasecmp
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#define SDL_sscanf sscanf
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#define SDL_vsscanf vsscanf
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#define SDL_snprintf snprintf
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#define SDL_vsnprintf vsnprintf
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#endif
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SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
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{
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return SDL_memcpy(dst, src, dwords * 4);
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}
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* SDL_stdinc_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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