string.h File Reference

Interface: string functions. More...

#include <mem.h>

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Functions
void *	memcpy (void *dest, const void *src, size_t size)
	copy memory block from src to dest. More...
void *	memset (void *s, int c, size_t n)
	fill memory block with a byte value. More...
char *	strcpy (char *dest, const char *src)
	Copy null-terminated string from src to dest. More...
int	strlen (const char *s)
	Determine string length. More...
int	strcmp (const char *s1, const char *s2)
	Compare two strings. More...

Detailed Description

Interface: string functions.

Author

Markus L. Noga marku.nosp@m.s@no.nosp@m.ga.de

Definition in file string.h.

Function Documentation

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

copy memory block from src to dest.

Parameters

dest	destination
src	source
size	number of bytes to copy

Warning

behaviour is undefined in case source and destination blocks overlap.

Referenced by kmain().

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

fill memory block with a byte value.

Parameters

s	start
c	byte fill value
n	number of bytes to fill

Referenced by kmain(), and lcd_init().

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

Compare two strings.

Parameters

s1	first string
s2	second string

Returns

<0: s1<s2, ==0: s1==s2, >0: s1>s2

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

Copy null-terminated string from src to dest.

Parameters

src	source
dest	destination

Returns

pointer to dest

int strlen

(

const char *

s

)

Determine string length.

Parameters

s

string

Returns

string length