printf.h File Reference

#include <stdarg.h>
#include <stddef.h>

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Macros
#define	_PRINTF_H_
#define	printf   printf_
#define	printf   printf_
#define	snprintf   snprintf_
#define	snprintf   snprintf_
#define	sprintf   sprintf_
#define	sprintf   sprintf_
#define	vprintf   vprintf_
#define	vprintf   vprintf_
#define	vsnprintf   vsnprintf_
#define	vsnprintf   vsnprintf_

Functions
void	_putchar (char character)
int	fctprintf (void(*out)(char character, void *arg), void *arg, const char *format,...)
int	printf_ (const char *format,...)
int	snprintf_ (char *buffer, size_t count, const char *format,...)
int	sprintf_ (char *buffer, const char *format,...)
int	vprintf_ (const char *format, va_list va)
int	vsnprintf_ (char *buffer, size_t count, const char *format, va_list va)

Macro Definition Documentation

_PRINTF_H_

#define _PRINTF_H_

Definition at line 34 of file test_suite.cpp.

printf [1/2]

#define printf   printf_

Tiny printf implementation You have to implement putchar if you use printf() To avoid conflicts with the regular printf() API it is overridden by macro defines and internal underscore-appended functions like printf() are used

Parameters

format

A string that specifies the format of the output

Returns

The number of characters that are written into the array, not counting the terminating null character

Definition at line 61 of file test_suite.cpp.

printf [2/2]

#define printf   printf_

snprintf [1/2]

#define snprintf   snprintf_

snprintf [2/2]

#define snprintf   snprintf_

Tiny SNPRINTF/vsnprintf implementation

Parameters

buffer	A pointer to the buffer where to store the formatted string
count	The maximum number of characters to store in the buffer, including a terminating null character
format	A string that specifies the format of the output
va	A value identifying a variable arguments list

Returns

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

Definition at line 86 of file test_suite.cpp.

sprintf [1/2]

#define sprintf   sprintf_

sprintf [2/2]

#define sprintf   sprintf_

Tiny sprintf implementation Due to security reasons (buffer overflow) YOU SHOULD CONSIDER USING (V)SNPRINTF INSTEAD!

Parameters

buffer	A pointer to the buffer where to store the formatted string. MUST be big enough to store the output!
format	A string that specifies the format of the output

Returns

The number of characters that are WRITTEN into the buffer, not counting the terminating null character

Definition at line 72 of file test_suite.cpp.

vprintf [1/2]

#define vprintf   vprintf_

Tiny vprintf implementation

Parameters

format	A string that specifies the format of the output
va	A value identifying a variable arguments list

Returns

The number of characters that are WRITTEN into the buffer, not counting the terminating null character

Definition at line 98 of file test_suite.cpp.

vprintf [2/2]

#define vprintf   vprintf_

vsnprintf [1/2]

#define vsnprintf   vsnprintf_

Definition at line 87 of file test_suite.cpp.

vsnprintf [2/2]

#define vsnprintf   vsnprintf_

Function Documentation

_putchar()

void _putchar

(

char

character

)

Output a character to a custom device like UART, used by the printf() function This function is declared here only. You have to write your custom implementation somewhere

Parameters

character

Character to output

fctprintf()

int fctprintf	(	void(*)(char character, void *arg)	out,
		void *	arg,
		const char *	format,
			...
	)

printf with output function You may use this as dynamic alternative to printf() with its fixed _putchar() output

Parameters

out	An output function which takes one character and an argument pointer
arg	An argument pointer for user data passed to output function
format	A string that specifies the format of the output

Returns

The number of characters that are sent to the output function, not counting the terminating null character

Definition at line 906 of file printf.c.

printf_()

int printf_	(	const char *	format,
			...
	)

Definition at line 862 of file printf.c.

snprintf_()

int snprintf_	(	char *	buffer,
		size_t	count,
		const char *	format,
			...
	)

Definition at line 883 of file printf.c.

sprintf_()

int sprintf_	(	char *	buffer,
		const char *	format,
			...
	)

Definition at line 873 of file printf.c.

vprintf_()

int vprintf_	(	const char *	format,
		va_list	va
	)

Definition at line 893 of file printf.c.

vsnprintf_()

int vsnprintf_	(	char *	buffer,
		size_t	count,
		const char *	format,
		va_list	va
	)

Definition at line 900 of file printf.c.