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feat(memory): add SMemZero

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Adam Heinermann 2025-09-01 21:00:55 -07:00 • committed by fallenoak
parent 2efa5339e2
commit 60523c3fe8
3 changed files with 27 additions and 0 deletions
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7
storm/Memory.cpp
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@ -70,3 +70,10 @@ void* SMemReAlloc(void* ptr, size_t bytes, const char* filename, int32_t linenum
return nullptr;
}
}
void SMemZero(void* ptr, size_t bytes) {
uint8_t* ptrdata = static_cast<uint8_t*>(ptr);
for (size_t i = 0; i < bytes; i++) {
ptrdata[i] = 0;
}
}

2
storm/Memory.hpp
View file

@ -18,4 +18,6 @@ void SMemFree(void* ptr, const char* filename, int32_t linenumber, uint32_t flag
void* SMemReAlloc(void* ptr, size_t bytes, const char* filename, int32_t linenumber, uint32_t flags = 0);
void SMemZero(void* ptr, size_t bytes);
#endif

18
test/Memory.cpp
View file

@ -103,3 +103,21 @@ TEST_CASE("SMemReAlloc", "[memory]") {
SMemFree(ptr2);
}
}
TEST_CASE("SMemZero", "[memory]") {
std::vector<uint8_t> data = { 1, 255, 128, 42, 69, 99, 13, 37 };
SECTION("zeroes out memory") {
std::vector<uint8_t> result = { 0, 0, 0, 0, 0, 99, 13, 37 };
SMemZero(data.data(), 5);
CHECK_THAT(data, Catch::Matchers::Equals(result));
}
SECTION("does nothing if size is 0") {
std::vector<uint8_t> change = data;
SMemZero(change.data(), 0);
CHECK_THAT(change, Catch::Matchers::Equals(data));
}
}