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-rw-r--r--lib/libc/string/memccpy.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/libc/string/memccpy.c b/lib/libc/string/memccpy.c
new file mode 100644
index 00000000..29828182
--- /dev/null
+++ b/lib/libc/string/memccpy.c
@@ -0,0 +1,13 @@
+#include <stddef.h>
+
+void *memccpy(void *restrict s1, const void *restrict s2, int c, size_t n)
+{
+ const unsigned char *p2 = s2;
+ unsigned char *p1 = s1;
+ while (n--) {
+ if (*p2 == (unsigned char)c)
+ return p1 + 1;
+ *p1++ = *p2++;
+ }
+ return NULL;
+}