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strchr and strrchr return a pointer to the first/last occurrence of a character in a string, or NULL if the character is not found. According to the C standard, the final null terminator is part of the string, and it should thus be possible to get a pointer to the final null with these functions. The fallback implementations of SDL_strchr and SDL_strrchr would always return NULL if trying to find '\0', and this commit fixes that.
Simple DirectMedia Layer (SDL) Version 2.0
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting with README.md
Enjoy!
Sam Lantinga (slouken@libsdl.org)
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