When The Compiler Is Smarter Than You

compiler infinite loop Cpp Optimization Hello world Unexpected behavior Compiler magic

C++ Programming Debugging Algorithms

24 days ago 96,730 views 0 shares

When The Compiler Is Smarter Than You

cpp-memes, compiler-memes, optimization-memes, infinite-loop-memes, debugging-memes | ProgrammerHumor.io

The compiler just performed the most spectacular magic trick in programming history. We've got a C++ program with an infinite while(1) loop and a function literally named unreachable() that should never execute. Yet somehow, when compiled with optimizations, it spits out "Hello world!" anyway.

The compiler optimization flags (-O1) basically said "this infinite loop is useless nonsense" and just... skipped it entirely. It's like your code review comments were taken literally by the universe. That moment when the compiler is smarter than your intentionally broken code is both humbling and hilarious.

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