Russ Cox • 8/18/2023

C and C++ Prioritize Performance over Correctness

This technical article critiques the C and C++ standards' reliance on undefined behavior, arguing that modern compilers exploit it for optimization at the expense of program correctness. It examines specific examples like uninitialized variables and signed integer overflow, contrasting these languages with others like Go and Java. The core thesis is that the current approach sacrifices predictable execution and safety for performance gains.

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#programming languages #c #compiler optimization