diff options
| -rw-r--r-- | kernel/libc/string/memmove.c | 3 | ||||
| -rw-r--r-- | userland/libc/string/memmove.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/kernel/libc/string/memmove.c b/kernel/libc/string/memmove.c index 5fc49f7..3446643 100644 --- a/kernel/libc/string/memmove.c +++ b/kernel/libc/string/memmove.c @@ -3,6 +3,9 @@ // copy bytes in memory with overlapping areas // https://pubs.opengroup.org/onlinepubs/9699919799/functions/memmove.html void *memmove(void *s1, const void *s2, size_t n) { + if(0 == n) { + return s1; + } // Copying takes place as if the n bytes from the object pointed to by s2 are // first copied into a temporary array of n bytes that does not overlap the // objects pointed to by s1 and s2, and then the n bytes from the temporary diff --git a/userland/libc/string/memmove.c b/userland/libc/string/memmove.c index 5fc49f7..d7da375 100644 --- a/userland/libc/string/memmove.c +++ b/userland/libc/string/memmove.c @@ -3,6 +3,9 @@ // copy bytes in memory with overlapping areas // https://pubs.opengroup.org/onlinepubs/9699919799/functions/memmove.html void *memmove(void *s1, const void *s2, size_t n) { + if (0 == n) { + return s1; + } // Copying takes place as if the n bytes from the object pointed to by s2 are // first copied into a temporary array of n bytes that does not overlap the // objects pointed to by s1 and s2, and then the n bytes from the temporary |