I know that a command line application should return 0 on success. But are there any “standards” for what other values refer to? e.g. Invalid Arguments, etc.
Are there differences under Windows and Unix?
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I know that a command line application should return 0 on success. But are there any “standards” for what other values refer to? e.g. Invalid Arguments, etc.
Are there differences under Windows and Unix?
A standard set of error codes and it’s corresponding messages are present in errno.h. System calls return values can be compared against this.
If you are writing your custom program, then the return value can be what you want it to be. Handling the return values will entirely depend upon you.