diff options
Diffstat (limited to 'libc/include/ctype.h')
| -rw-r--r-- | libc/include/ctype.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libc/include/ctype.h b/libc/include/ctype.h index 22e3e81..b57abbb 100644 --- a/libc/include/ctype.h +++ b/libc/include/ctype.h @@ -16,5 +16,7 @@ static inline int isgraph(int c) { return !iscntrl(c) && !isspace(c); } static inline int isprint(int c) { return !iscntrl(c); } static inline int ispunct(int c) { return !iscntrl(c) && !isspace(c) && !isalnum(c); } +static inline int toupper(int c) { return islower(c) ? c & ~0x20 : c; } +static inline int tolower(int c) { return isupper(c) ? c | 0x20 : c; } #endif |