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Tutorial

Avoiding Memory Leaks in C++ Without Smart Pointers

What’s wrong? If someCondition() returns true, buffer is never deallocated.

void loadData() {
    char* buffer = new char[1024];
    try {
        if (someCondition()) {
            throw std::runtime_error("Something went wrong");
        }
        // more code...
    } catch (...) {
        delete[] buffer;
        throw;
    }
    delete[] buffer;
}

Apr 11, 2025
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