Syntax
#include <string.h> char *strdup(const char *string);Description
strdup reserves storage space for a copy of string by calling malloc. The string argument to this function is expected to contain a null character (\0) marking the end of the string. Remember to free the storage reserved with the call to strdup.
strdup returns a pointer to the storage space containing the copied string. If it cannot reserve storage strdup returns NULL.
This example uses strdup to duplicate a string and print the copy.
#include <stdio.h>
#include <string.h>
int main(void)
{
char *string = "this is a copy";
char *newstr;
/* Make newstr point to a duplicate of string */
if ((newstr = strdup(string)) != NULL)
printf("The new string is: %s\n", newstr);
return 0;
/****************************************************************************
The output should be:
The new string is: this is a copy
****************************************************************************/
}
Related Information