6.23.61 wmemmove Function

Copy wide characters to an object, handling overlap of source and destination objects.

Include

<wchar.h>

Prototype

wchar_t * wmemmove( wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);

Arguments

s1

the object to hold the copied wide characters

s2

the object from which wide characters are copied

n

the number of wide characters to copy

Return Value

A copy of s1.

Remarks

The function copies n wide characters from the object pointed to by s2 into the object pointed to by s1. The memory used by the n wide characters in the destination location may overlap with that of the n wide characters in the source object.

Example

#include <wchar.h>

int main(void)
{
  wchar_t ws[40] = L"A string   to be sure";

  wmemmove(&ws[9], &ws[11], 11);
  wprintf(L"the wide string is \"%ls\"\n", ws);
}

Example Output

the wide string is "A string to be sure"