#include "safe_lib.h"

Include dependency graph for printf_s.c:

Functions
EXPORT int	printf_s (const char *restrict fmt,...)
	The printf_s function composes a string via the format string and writes it to the STDOUT file.

Function Documentation

◆ printf_s()

EXPORT int printf_s	(	const char *restrict	fmt,
			... )

The printf_s function composes a string via the format string and writes it to the STDOUT file.

Note: POSIX specifies that errno is set on error. However, the safeclib extended ES* errors do not set errno, only when the underlying system vprintf call fails, errno is set.

Remarks

SPECIFIED IN

C11 standard (ISO/IEC 9899:2011): K.3.5.3.3 The printf_s function (p: 593-594) http://en.cppreference.com/w/c/io/fprintf

Parameters

[in]	fmt	format-control string
[in]	...	optional arguments

Precondition: fmt shall not be a null pointer.; fmt shall not contain the conversion specifier n.; None of the arguments corresponding to s is a null pointer.; No encoding error shall occur.

Returns: On success the total number of characters written is returned.; On failure a negative number is returned.

Return values

-ESNULLP	when fmt is NULL pointer
-EINVAL	when fmt contains n
-1	on some other error. errno might be set then.