memcpy function

memcpy copies data between two memory locations. This function will copy the supplied number of bytes stored at the location pointed to by 's2' to the location pointed to by 's1'.

 	s1		s2
	|		|
	V		V
 - - - -		---------------	
 | | | | | | a | b | c | d |
 - - - -		---------------	
	^ ^		| |
	| |		| |
	 -|------------- |
	 ------------------

Prototype

 Library: string.h
 Prototype: char memcpy(void *s1, void *s2, int num);
 Syntax:
 float data1;
 char data2[64];
 
 memcpy(data1, data2, sizeof(data2));

Notes

This is a handy function for moving data between data types

strncpy
strcpy
sprintf
strcat
strings
memcpy Copy data from one memory location to another.

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Martin Leslie

file: /Techref/language/ccpp/cref/FUNCTIONS/memcpy.htm, 2KB, , updated: 2018年3月2日 13:26, local time: 2025年9月4日 19:24,

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memcpy function

Prototype

Notes

See also:

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