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function
<cstring>

strncat

char * strncat ( char * destination, const char * source, size_t num );
Append characters from string
Appends the first num characters of source to destination, plus a terminating null-character.

If the length of the C string in source is less than num, only the content up to the terminating null-character is copied.

Parameters

destination
Pointer to the destination array, which should contain a C string, and be large enough to contain the concatenated resulting string, including the additional null-character.
source
C string to be appended.
num
Maximum number of characters to be appended.
size_t is an unsigned integral type.

Return Value

destination is returned.

Example

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/* strncat example */
#include <stdio.h>
#include <string.h>

int main ()
{
  char str1[20];
  char str2[20];
  strcpy (str1,"To be ");
  strcpy (str2,"or not to be");
  strncat (str1, str2, 6);
  puts (str1);
  return 0;
}


Output:

To be or not

See also