strncpy.c

linux内核

/*
 * strncpy.c
 *
 * strncpy()
 */

#include <string.h>

char *strncpy(char *dst, const char *src, size_t n)
{
  char *q = dst;
  const char *p = src;
  char ch;

  while ( n-- ) {
    *q++ = ch = *p++;
    if ( !ch )
      break;
  }

  return dst;
}