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Fix exception safety in util::stack_vector::push_back

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This commit is contained in:
nogitsune-youkai 2026-09-26 19:30:06 +03:00
parent 16935fb5b9
commit 273682355a
1 changed files with 13 additions and 9 deletions
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22
src/util/stack_vector.hpp
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@ -48,21 +48,25 @@ namespace util {
}
void push_back(const T& value) {
if (size_ < capacity) {
auto data = reinterpret_cast<char*>(data_.ptr() + (size_++));
new (data) T(value);
} else {
if (size_ >= capacity) {
throw std::overflow_error("stack vector capacity exceeded");
}
void* p = data_.data + size_ * sizeof(T);
::new (p) T(value);
++size_;
}
void push_back(T&& value) {
if (size_ < capacity) {
auto data = reinterpret_cast<char*>(data_.ptr() + (size_++));
new (data) T(std::move(value));
} else {
if (size_ >= capacity) {
throw std::overflow_error("stack vector capacity exceeded");
}
void* p = data_.data + size_ * sizeof(T);
::new (p) T(std::move(value));
++size_;
}
void pop_back() {
@ -76,7 +80,7 @@ namespace util {
void clear() {
for (int i = 0; i < size_; ++i) {
data_.ptr()[i].~T();
data_.ptr()[i].~T();
}
size_ = 0;
}