Page History

Wiki MarkupThe C standard identifies specific strings to use for the {{mode}} on calls to {{fopen()}} \ [[ISO/IEC 9899:1999|AA. Bibliography#ISO/IEC 9899-1999]\]. To be strictly conforming and portable, one of the strings from the following table (adapted from the C standard) must be used:

Strings to use for the mode on calls to fopen()

...

If the mode string begins with one of these sequences, the implementation might choose to ignore the remaining characters, or it might use them to select different kinds of files.

Wiki MarkupAn [implementation|BB. Definitions#implementation] may define additional mode strings, but only the modes shown in the table are fully portable and C99 compliant \ [[ISO/IEC 9899:1999|AA. Bibliography#ISO/IEC 9899-1999]\].

Risk Assessment

Using a mode string that is not recognized by an implementation may cause the call to fopen() to fail.

Automated Detection

...