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Diffstat (limited to 'mdk-stage1/dietlibc/lib/isupper.c')
| -rw-r--r-- | mdk-stage1/dietlibc/lib/isupper.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mdk-stage1/dietlibc/lib/isupper.c b/mdk-stage1/dietlibc/lib/isupper.c index 933dfc169..048d4fd6c 100644 --- a/mdk-stage1/dietlibc/lib/isupper.c +++ b/mdk-stage1/dietlibc/lib/isupper.c @@ -1,7 +1,9 @@ #include <ctype.h> -int __isupper_ascii(int c) { - return (c>='A' && c<='Z'); +int __isupper_ascii ( int ch ); +int __isupper_ascii ( int ch ) +{ + return (unsigned int)(ch - 'A') < 26u; } -int isupper(int c) __attribute__((weak,alias("__isupper_ascii"))); +int isupper ( int ch ) __attribute__((weak,alias("__isupper_ascii"))); |