memecpy

NAME

memcpy - copy bytes in memory

SYNOPSIS

#include <string.h>

void *memcpy(void *restrict s1, const void *restrict s2, size_t n);

DESCRIPTION

  1. 标准C库
  2. memcpy() 函数应将s2指向的对象中的n个字节复制到s1指向的对象中。 如果在重叠的对象之间进行复制,则行为未定义

RETURN VALUE

The memcpy() function shall return s1;

no return value is reserved to indicate an error.

ERRORS

No errors are defined.


The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

The memcpy() function does not check for the overflow of the receiving memory area.

不检查内存溢出

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

XBD <string.h>

CHANGE HISTORY

First released in Issue 1. Derived from Issue 1 of the SVID.

Issue 6

The memcpy() prototype is updated for alignment with the ISO/IEC 9899:1999 standard.