TheEXIT_SUCCESS andEXIT_FAILURE macros expand into integral constant expressions that can be used as arguments to thestd::exit function (and, therefore, as the values to return from themain function), and indicate program execution status.

[edit]Notes

BothEXIT_SUCCESS and the value zero indicate successful program execution status (seestd::exit), although it is not required thatEXIT_SUCCESS equals zero.

AlthoughEXIT_SUCCESS andEXIT_FAILURE are required to be freestanding since C++23, they are not required to be available in a freestanding C implementation.

[edit]Example

#include <cstdlib>#include <iostream> int main(int argc,char* argv[]){if(argc<=1){std::cout<<"At least one command-line argument required\n";return EXIT_FAILURE;} std::cout<< argv[1]<<'\n';return EXIT_SUCCESS;}

The quick brown fox jumps over the lazy cat

[edit]See also

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