diff options
Diffstat (limited to 'gettext-tools/lib/c-strncasecmp.c')
| -rw-r--r-- | gettext-tools/lib/c-strncasecmp.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gettext-tools/lib/c-strncasecmp.c b/gettext-tools/lib/c-strncasecmp.c index 33e8091..2d260ef 100644 --- a/gettext-tools/lib/c-strncasecmp.c +++ b/gettext-tools/lib/c-strncasecmp.c @@ -22,6 +22,8 @@ /* Specification. */ #include "c-strcase.h" +#include <limits.h> + #include "c-ctype.h" int @@ -47,5 +49,11 @@ c_strncasecmp (const char *s1, const char *s2, size_t n) } while (c1 == c2); - return c1 - c2; + if (UCHAR_MAX <= INT_MAX) + return c1 - c2; + else + /* On machines where 'char' and 'int' are types of the same size, the + difference of two 'unsigned char' values - including the sign bit - + doesn't fit in an 'int'. */ + return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); } |