diff options
| -rw-r--r-- | src/internal/stdio_impl.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h index 0dd7fb5e..7cdf729d 100644 --- a/src/internal/stdio_impl.h +++ b/src/internal/stdio_impl.h @@ -86,7 +86,8 @@ void __ofl_unlock(void); #define getc_unlocked(f) \ ( ((f)->rpos < (f)->rend) ? *(f)->rpos++ : __uflow((f)) ) -#define putc_unlocked(c, f) ( ((c)!=(f)->lbf && (f)->wpos<(f)->wend) \ +#define putc_unlocked(c, f) \ + ( ((unsigned char)(c)!=(f)->lbf && (f)->wpos<(f)->wend) \ ? *(f)->wpos++ = (c) : __overflow((f),(c)) ) /* Caller-allocated FILE * operations */ |