FWriteFmt

Description

Write formatted output to a file stream. This macro internally uses StrWriteFmtInternal to format the string and then writes it to the stream.

Parameters

Success

Placeholders in fmtstr are replaced by the passed arguments, and the resulting formatted string is written to the specified stream.

Failure

Failure might occur during memory allocation for the temporary string or during the write operation to the stream (handled by fputs). Errors from StrWriteFmtInternal (logging messages) might also occur.

Usage example (Cross-references)

    
    // Print the log prefix to stderr
    FWriteFmt(stderror, "[{}] [{}:{}] ", msg_type, tag, line);
    
    fputs(msg, stderror);

    /// TAGS: Macro, Convenience, Stdout, I/O
    ///
    #define WriteFmt(...) FWriteFmt(stdout, __VA_ARGS__)
    
    ///