请问怎么修改这个warning

请教如何修改这个warning
time_t t = time(NULL);
printf("%s",ctime(&t));

经PCLINT检查，printf("%s",ctime(&t))这行代码，出现下面的WARNING，该如何修改？
Issue 559: (Warning -- Size of argument no. 2 inconsistent with format)


[解决办法]

C/C++ code

#include <stdio.h>#include <time.h>int main (){  time_t t=time(NULL);  int n;  n=printf ( "%s", ctime (&t));  printf("The length is %d.",n);  return 0;}
[解决办法]
探讨

time_t t = time(NULL);
printf("%s",ctime(&amp;t));

经PCLINT检查，printf("%s",ctime(&amp;t))这行代码，出现下面的WARNING，该如何修改？
Issue 559: (Warning -- Size of argument no. 2 inconsistent with format)

[解决办法]
//returns a pointer to the character string result. If time represents a date before midnight, January 1, 1970, UTC, the function returns NULL

time_t t = time(NULL);
char *s=ctime(&t);
if (NULL!=s) printf("%s",s);
else printf("NULL");