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strcat

From cppreference.com
< c‎ | string‎ | byte
Defined in header <string.h>
char *strcat( char          *dest, const char          *src );
(until C99)
char *strcat( char *restrict dest, const char *restrict src );
(since C99)

Appends a byte string pointed to by src to a byte string pointed to by dest. The resulting byte string is null-terminated.

The destination byte string must be large enough for the contents of both str and dest and the terminating null character.

The behavior is undefined if the strings overlap.

Contents

[edit] Parameters

dest - pointer to the null-terminated byte string to append to
src - pointer to the null-terminated byte string to copy from

[edit] Return value

dest

[edit] Example

#include <string.h> 
#include <stdio.h>
 
int main(void) 
{
    char str[50] = "Hello ";
    char str2[50] = "World!";
    strcat(str, str2);
    strcat(str, " ...");
    strcat(str, " Goodbye World!");
    puts(str);
}

Output:

Hello World! ... Goodbye World!

[edit] See also

concatenates a certain amount of characters of two strings
(function) [edit]
copies one string to another
(function) [edit]