diff options
| -rw-r--r-- | src/string/strtok.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/string/strtok.c b/src/string/strtok.c index c46a9556..b48bba18 100644 --- a/src/string/strtok.c +++ b/src/string/strtok.c @@ -5,12 +5,15 @@ char * strtok(char * restrict s1, const char * restrict s2) { - static char *current = 0; + static char *current = NULL; static char **state = ¤t; /* TODO */ SIGNAL_SAFE(0); ASSERT_NONNULL(s2); + if (current == NULL && s1 == NULL) { + UNDEFINED("strtok() called with NULL input and no previous call"); + } /* nothing is copied, overlap is OK */ /* |