EXIT_SUCCESS, EXIT_FAILURE
From cppreference.com
Defined in header <cstdlib>
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#define EXIT_SUCCESS /*implementation defined*/ |
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#define EXIT_FAILURE /*implementation defined*/ |
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The EXIT_SUCCESS
and EXIT_FAILURE
macros expand into integral expressions that can be used as arguments to the std::exit function (and, therefore, as the values to return from the main function), and indicate program execution status.
Constant | Explanation |
EXIT_SUCCESS
|
successful execution of a program |
EXIT_FAILURE
|
unsuccessful execution of a program |
Notes
Both EXIT_SUCCESS
and the value zero indicate successful program execution status (see std::exit), although it is not required that EXIT_SUCCESS
equals zero.