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Fixed bug 5001 - Feature request: SDL_isupper & SDL_islower

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This commit is contained in:
Sam Lantinga 2020-03-02 15:21:07 -08:00
parent a8f91340c8
commit aa384ad02b
4 changed files with 10 additions and 0 deletions
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4
src/stdlib/SDL_stdlib.c
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@ -438,11 +438,15 @@ int SDL_abs(int x)
#if defined(HAVE_CTYPE_H)
int SDL_isdigit(int x) { return isdigit(x); }
int SDL_isspace(int x) { return isspace(x); }
int SDL_isupper(int x) { return isupper(x); }
int SDL_islower(int x) { return islower(x); }
int SDL_toupper(int x) { return toupper(x); }
int SDL_tolower(int x) { return tolower(x); }
#else
int SDL_isdigit(int x) { return ((x) >= '0') && ((x) <= '9'); }
int SDL_isspace(int x) { return ((x) == ' ') || ((x) == '\t') || ((x) == '\r') || ((x) == '\n') || ((x) == '\f') || ((x) == '\v'); }
int SDL_isupper(int x) { return ((x) >= 'A') && ((x) <= 'Z'); }
int SDL_islower(int x) { return ((x) >= 'a') && ((x) <= 'z'); }
int SDL_toupper(int x) { return ((x) >= 'a') && ((x) <= 'z') ? ('A'+((x)-'a')) : (x); }
int SDL_tolower(int x) { return ((x) >= 'A') && ((x) <= 'Z') ? ('a'+((x)-'A')) : (x); }
#endif