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lib/memory: Use uintptr_t for pointer comparisons in memmove

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Mintsuki
2026-02-15 22:04:25 +01:00
parent 7ddb899f6a
commit 5911c7cf72
3 changed files with 6 additions and 6 deletions
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4
common/lib/memory.s2.c
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@@ -26,11 +26,11 @@ void *memmove(void *dest, const void *src, size_t n) {
uint8_t *pdest = (uint8_t *)dest;
const uint8_t *psrc = (const uint8_t *)src;
if (src > dest) {
if ((uintptr_t)src > (uintptr_t)dest) {
for (size_t i = 0; i < n; i++) {
pdest[i] = psrc[i];
}
} else if (src < dest) {
} else if ((uintptr_t)src < (uintptr_t)dest) {
for (size_t i = n; i > 0; i--) {
pdest[i-1] = psrc[i-1];
}

4
decompressor/memory.c
View File

@@ -26,11 +26,11 @@ void *memmove(void *dest, const void *src, size_t n) {
uint8_t *pdest = (uint8_t *)dest;
const uint8_t *psrc = (const uint8_t *)src;
if (src > dest) {
if ((uintptr_t)src > (uintptr_t)dest) {
for (size_t i = 0; i < n; i++) {
pdest[i] = psrc[i];
}
} else if (src < dest) {
} else if ((uintptr_t)src < (uintptr_t)dest) {
for (size_t i = n; i > 0; i--) {
pdest[i-1] = psrc[i-1];
}

4
test/memory.c
View File

@@ -26,11 +26,11 @@ void *memmove(void *dest, const void *src, size_t n) {
uint8_t *pdest = dest;
const uint8_t *psrc = src;
if (src > dest) {
if ((uintptr_t)src > (uintptr_t)dest) {
for (size_t i = 0; i < n; i++) {
pdest[i] = psrc[i];
}
} else if (src < dest) {
} else if ((uintptr_t)src < (uintptr_t)dest) {
for (size_t i = n; i > 0; i--) {
pdest[i-1] = psrc[i-1];
}