kabufuda/include/kabufuda/winsupport.hpp

35 lines
745 B
C++

#pragma once
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#ifndef NOMINMAX
#define NOMINMAX 1
#endif
#include "windows.h"
#include <cstdint>
#ifndef DEF_INLINE_MEMMEM
#define DEF_INLINE_MEMMEM
inline void* memmem(const void* haystack, size_t hlen, const void* needle, size_t nlen) {
int needle_first;
const uint8_t* p = static_cast<const uint8_t*>(haystack);
size_t plen = hlen;
if (!nlen)
return NULL;
needle_first = *(unsigned char*)needle;
while (plen >= nlen && (p = static_cast<const uint8_t*>(memchr(p, needle_first, plen - nlen + 1)))) {
if (!memcmp(p, needle, nlen))
return (void*)p;
p++;
plen = hlen - (p - static_cast<const uint8_t*>(haystack));
}
return NULL;
}
#endif