c - Error on file open: File exists

Question

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

The return value of an open() was -1 and on trying to find the error using perror() the output was "File exists".

How do I find the error or the reason for the file not opening.

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1 Answer

深蓝 · Answer 1 · 2022-01-31T07:26:51+0000

answered Jan 31, 2022 by 深蓝 (71.8m points)

Looks like

EEXIST
pathname already exists and O_CREAT and O_EXCL were used.

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