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by jerf
28 days ago
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And why some very, very special languages have an effectively-global variable called "errno" that you have to check after the call manually, and worry about whether maybe it was populated from some previous error. Nothing says "production-quality language that an entire civilization's code base should be based on" like "sometimes (but only sometimes!) functions return additional information through global values". |
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As you can read at https://en.wikipedia.org/wiki/Errno.h errno is barely used by the C standard (though defined there). It is rather POSIX that uses errno very encompassingly. For example the WinAPI functions use a much more sensible way to report errors (and don't make use of errno).