C Tutorial/string.h/strncpy

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strncpy

Item Value Header file string.h Declaration char *strncpy(char *str1, const char *str2, size_t count); Function copies up to count characters from *str2 to *str1. Return returns a pointer to str1.

  1. str2 must be a pointer to a null-terminated string.
  2. If *str2 has less than "count" characters, nulls will be appended to *str1 until count characters have been copied.
  3. If *str2 is longer than count characters, the result *str1 will not be null terminated.


#include<stdio.h>
#include<string.h>
int main(void){
  char str1[128], str2[80];
  gets(str1);
  strncpy(str2, str1, 79);
  printf("%s",str2);
}