C/C++: Performance Over Correctness?
2025-03-31
This article delves into the pitfalls of "undefined behavior" in C and C++. In the pursuit of ultimate performance, compilers often take a laissez-faire approach to uninitialized variables, arithmetic overflow, infinite loops, and null pointers, rather than reporting errors or inserting safety checks. This makes programs difficult to debug and maintain, potentially leading to unpredictable crashes. The author uses several examples to illustrate how C/C++ compilers prioritize optimization, even at the cost of program correctness and predictability, prompting reflection on this design philosophy.
Development
C Language