mirror of https://github.com/encounter/SDL.git
3bf7994fe2
Case fallthrough warnings can be suppressed using the __fallthrough__
compiler attribute. Unfortunately, not all compilers have this
attribute, or even have __has_attribute to check if they have the
__fallthrough__ attribute. [[fallthrough]] is also available in C++17
and the next C2x, but not everyone uses C++17 or C2x.
So define the SDL_FALLTHROUGH macro to deal with those problems - if we
are using C++17 or C2x, it expands to [[fallthrough]]; else if the
compiler has __has_attribute and has the __fallthrough__ attribute, then
it expands to __attribute__((__fallthrough__)); else it expands to an
empty statement, with a /* fallthrough */ comment (it's a do {} while
(0) statement, because users of this macro need to use a semicolon,
because [[fallthrough]] and __attribute__((__fallthrough__)) require a
semicolon).
Clang before Clang 10 and GCC before GCC 7 have problems with using
__attribute__ as a sole statement and warn about a "declaration not
declaring anything", so fall back to using the /* fallthrough */ comment
if we are using those older compiler versions.
Applications using SDL are also free to use this macro (because it is
defined in begin_code.h).
All existing /* fallthrough */ comments have been replaced with this
macro. Some of them were unnecessary because they were the last case in
a switch; using SDL_FALLTHROUGH in those cases would result in a compile
error on compilers that support __fallthrough__, for having a
__attribute__((__fallthrough__)) statement that didn't immediately
precede a case label.
|
||
|---|---|---|
| .. | ||
| emscripten | ||
| nacl | ||
| shapes | ||
| CMakeLists.txt | ||
| COPYING | ||
| Makefile.in | ||
| Makefile.os2 | ||
| README | ||
| acinclude.m4 | ||
| autogen.sh | ||
| axis.bmp | ||
| button.bmp | ||
| checkkeys.c | ||
| checkkeysthreads.c | ||
| configure | ||
| configure.ac | ||
| controllermap.bmp | ||
| controllermap.c | ||
| controllermap_back.bmp | ||
| gcc-fat.sh | ||
| icon.bmp | ||
| loopwave.c | ||
| loopwavequeue.c | ||
| moose.dat | ||
| picture.xbm | ||
| relative_mode.markdown | ||
| sample.bmp | ||
| sample.wav | ||
| testatomic.c | ||
| testaudiocapture.c | ||
| testaudiohotplug.c | ||
| testaudioinfo.c | ||
| testautomation.c | ||
| testautomation_audio.c | ||
| testautomation_clipboard.c | ||
| testautomation_events.c | ||
| testautomation_hints.c | ||
| testautomation_keyboard.c | ||
| testautomation_main.c | ||
| testautomation_mouse.c | ||
| testautomation_pixels.c | ||
| testautomation_platform.c | ||
| testautomation_rect.c | ||
| testautomation_render.c | ||
| testautomation_rwops.c | ||
| testautomation_sdltest.c | ||
| testautomation_stdlib.c | ||
| testautomation_suites.h | ||
| testautomation_surface.c | ||
| testautomation_syswm.c | ||
| testautomation_timer.c | ||
| testautomation_video.c | ||
| testbounds.c | ||
| testcustomcursor.c | ||
| testdisplayinfo.c | ||
| testdraw2.c | ||
| testdrawchessboard.c | ||
| testdropfile.c | ||
| testerror.c | ||
| testevdev.c | ||
| testfile.c | ||
| testfilesystem.c | ||
| testgamecontroller.c | ||
| testgeometry.c | ||
| testgesture.c | ||
| testgl2.c | ||
| testgles.c | ||
| testgles2.c | ||
| testgles2_sdf.c | ||
| testgles2_sdf_img_normal.bmp | ||
| testgles2_sdf_img_sdf.bmp | ||
| testhaptic.c | ||
| testhittesting.c | ||
| testhotplug.c | ||
| testiconv.c | ||
| testime.c | ||
| testintersections.c | ||
| testjoystick.c | ||
| testkeys.c | ||
| testloadso.c | ||
| testlocale.c | ||
| testlock.c | ||
| testmessage.c | ||
| testmouse.c | ||
| testmultiaudio.c | ||
| testnative.c | ||
| testnative.h | ||
| testnativecocoa.m | ||
| testnativeos2.c | ||
| testnativew32.c | ||
| testnativex11.c | ||
| testoffscreen.c | ||
| testoverlay2.c | ||
| testplatform.c | ||
| testpower.c | ||
| testqsort.c | ||
| testrelative.c | ||
| testrendercopyex.c | ||
| testrendertarget.c | ||
| testresample.c | ||
| testrumble.c | ||
| testscale.c | ||
| testsem.c | ||
| testsensor.c | ||
| testshader.c | ||
| testshape.c | ||
| testsprite2.c | ||
| testspriteminimal.c | ||
| teststreaming.c | ||
| testsurround.c | ||
| testthread.c | ||
| testtimer.c | ||
| testurl.c | ||
| testver.c | ||
| testviewport.c | ||
| testvulkan.c | ||
| testwm2.c | ||
| testyuv.bmp | ||
| testyuv.c | ||
| testyuv_cvt.c | ||
| testyuv_cvt.h | ||
| torturethread.c | ||
| unifont-13.0.06-license.txt | ||
| unifont-13.0.06.hex | ||
| utf8.txt | ||
README
These are test programs for the SDL library:
checkkeys Watch the key events to check the keyboard
loopwave Audio test -- loop playing a WAV file
loopwavequeue Audio test -- loop playing a WAV file with SDL_QueueAudio
testsurround Audio test -- play test tone on each audio channel
testaudioinfo Lists audio device capabilities
testerror Tests multi-threaded error handling
testfile Tests RWops layer
testgl2 A very simple example of using OpenGL with SDL
testiconv Tests international string conversion
testjoystick List joysticks and watch joystick events
testkeys List the available keyboard keys
testloadso Tests the loadable library layer
testlocale Test Locale API
testlock Hacked up test of multi-threading and locking
testmouse Tests mouse coordinates
testmultiaudio Tests using several audio devices
testoverlay2 Tests the overlay flickering/scaling during playback.
testplatform Tests types, endianness and cpu capabilities
testsem Tests SDL's semaphore implementation
testshape Tests shaped windows
testsprite2 Example of fast sprite movement on the screen
testthread Hacked up test of multi-threading
testtimer Test the timer facilities
testver Check the version and dynamic loading and endianness
testwm2 Test window manager -- title, icon, events
torturethread Simple test for thread creation/destruction
controllermap Useful to generate Game Controller API compatible maps
This directory contains sample.wav, which is a sample from Will Provost's
song, The Living Proof:
From the album The Living Proof
Publisher: 5 Guys Named Will
Copyright 1996 Will Provost
You can get a copy of the full song (and album!) from iTunes...
https://itunes.apple.com/us/album/the-living-proof/id4153978
or Amazon...
http://www.amazon.com/The-Living-Proof-Will-Provost/dp/B00004R8RH
Thanks to Will for permitting us to distribute this sample with SDL!