string

Small subset of string.h. More...

Collaboration diagram for string:

Files
file	string.c
	Implementation of some string.h functions.
file	string.h
	Definition of some string.h functions.

Functions
void *	memset (void *s, int c, size_t n)
void *	memcpy (void *dest, const void *src, size_t n)
size_t	strlen (const char *s)
int	strcmp (const char *s1, const char *s2)
char *	strcpy (char *dest, const char *src)
char *	strcat (char *dest, const char *src)
void	strrev (char *s)

Detailed Description

Small subset of string.h.

Function Documentation

memcpy()

void* memcpy	(	void *	dest,
		const void *	src,
		size_t	n
	)

Copies n bytes from memory area src to memory area dest. The memory areas must not overlap.

Returns

A pointer to dest.

memset()

void* memset	(	void *	s,
		int	c,
		size_t	n
	)

Fills the first n bytes of the memory area pointed to by s with the constant byte c.

Returns

A pointer to the memory area s.

strcat()

char* strcat	(	char *	dest,
		const char *	src
	)

Appends the src string to the dest string, overwriting the terminating null byte ('\0') at the end of dest, and then adds a terminating null byte.

Parameters

dest	A string pointer.
src	A string pointer.

Returns

A pointer to the resulting string dest.

strcmp()

int strcmp	(	const char *	s1,
		const char *	s2
	)

Compares the two strings s1 and s2.

Parameters

s1	A string pointer.
s2	A string pointer.

Returns

An integer less than, equal to, or greater than 0 if s1 is found, respectively, to be less than, to match, or be greater than s2.

strcpy()

char* strcpy	(	char *	dest,
		const char *	src
	)

Copies the string pointed to by src, including the terminating null byte ('\0'), to the buffer pointed to by dest.

Parameters

dest	A string pointer.
src	A string pointer.

Returns

A pointer to the destination string dest.

strlen()

size_t strlen

(

const char *

s

)

Calculates the length of the string pointed to by s, excluding the terminating null byte ('\0').

Parameters

s	A string pointer.

Returns

The number of bytes in the string pointed to by s.

strrev()

void strrev

(

char *

s

)

Reverses a given string in place.

Parameters

s	A string pointer.

See also

strlen()