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The {{open()}} function, as defined in the Open Group Base Specifications Issue 6 \[[Open Group 04|AA. C References#Open Group 04]\], is available on many platforms and provides finer control than {{fopen()}}. In particular, {{fopenopen()}} accepts the {{O_CREAT}} and {{O_EXCL}} flags. When used together, these flags instruct the {{open()}} function to fail if the file specified by {{file_name}} already exists. |
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