What does -lm option do in g++ and when is it needed?
Is there a complete description of g++ options?
What does -lm option do in g++ and when is it needed? Is there
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What does -lm option do in g++ and when is it needed?
Is there a complete description of g++ options?
That’s a linker option. It tells the linker to link with (
-l) themlibrary (libm.so/dll). That’s the math library. You often need it if you#include <math.h>.