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-rw-r--r--lib/libc/memset.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/lib/libc/memset.c b/lib/libc/memset.c
index f9dd4c5dbe..17f798cb9b 100644
--- a/lib/libc/memset.c
+++ b/lib/libc/memset.c
@@ -10,19 +10,20 @@
void *memset(void *dst, int val, size_t count)
{
- char *ptr = dst;
+ uint8_t *ptr = dst;
uint64_t *ptr64;
uint64_t fill = (unsigned char)val;
/* Simplify code below by making sure we write at least one byte. */
- if (count == 0) {
+ if (count == 0U) {
return dst;
}
/* Handle the first part, until the pointer becomes 64-bit aligned. */
- while (((uintptr_t)ptr & 7)) {
- *ptr++ = val;
- if (--count == 0) {
+ while (((uintptr_t)ptr & 7U) != 0U) {
+ *ptr = (uint8_t)val;
+ ptr++;
+ if (--count == 0U) {
return dst;
}
}
@@ -33,15 +34,17 @@ void *memset(void *dst, int val, size_t count)
fill |= fill << 32;
/* Use 64-bit writes for as long as possible. */
- ptr64 = (void *)ptr;
- for (; count >= 8; count -= 8) {
- *ptr64++ = fill;
+ ptr64 = (uint64_t *)ptr;
+ for (; count >= 8U; count -= 8) {
+ *ptr64 = fill;
+ ptr64++;
}
/* Handle the remaining part byte-per-byte. */
- ptr = (void *)ptr64;
- while (count--) {
- *ptr++ = val;
+ ptr = (uint8_t *)ptr64;
+ while (count-- > 0U) {
+ *ptr = (uint8_t)val;
+ ptr++;
}
return dst;