Function stdio_snprintf

• Defined in File printf.h

Function Documentation

int stdio_snprintf(char *s, size_t n, const char *format, ...)

An implementation of the C standard’s snprintf()

Parameters:

• s – An array in which to store the formatted string. It must be large enough to fit either the entire formatted output, or at least n characters. Alternatively, it can be NULL, in which case nothing will be printed, and only the number of characters which could have been printed is tallied and returned.

• n – The maximum number of characters to write to the array, including a terminating null character

• format – A string specifying the format of the output, with %-marked specifiers of how to interpret additional arguments.

• ... – Additional arguments to the function, one for each specifier in format.

Returns:

The number of characters that COULD have been written into s, not counting the terminating null character. A value equal or larger than n indicates truncation. Only when the returned value is non-negative and less than n, the null-terminated string has been fully and successfully printed.