How to set the modification time of a file programmatically?

Question

How do I set the modification time of a file programmatically in Windows?

Answer 1

From: http://rosettacode.org/wiki/File/Modification_Time#C

#include 
#include 
#include 

const char *filename = "input.txt";

int main() {
  struct stat foo;
  time_t mtime;
  struct utimbuf new_times;

  stat(filename, &foo);
  mtime = foo.st_mtime; /* seconds since the epoch */

  new_times.actime = foo.st_atime; /* keep atime unchanged */
  new_times.modtime = time(NULL);    /* set mtime to current time */
  utime(filename, &new_times);

  return 0;
}