diff options
Diffstat (limited to 'src/internal/shgetc.h')
| -rw-r--r-- | src/internal/shgetc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/internal/shgetc.h b/src/internal/shgetc.h index 1c30f75f..9435381a 100644 --- a/src/internal/shgetc.h +++ b/src/internal/shgetc.h @@ -26,7 +26,7 @@ hidden int __shgetc(FILE *); #define shcnt(f) ((f)->shcnt + ((f)->rpos - (f)->buf)) #define shlim(f, lim) __shlim((f), (lim)) #define shgetc(f) (((f)->rpos != (f)->shend) ? *(f)->rpos++ : __shgetc(f)) -#define shunget(f) ((f)->shend ? (void)(f)->rpos-- : (void)0) +#define shunget(f) ((f)->shlim>=0 ? (void)(f)->rpos-- : (void)0) #define sh_fromstring(f, s) \ ((f)->buf = (f)->rpos = (void *)(s), (f)->rend = (void*)-1) |