The header file utime.h contains several functions that are useful for porting a program from UNIX. These functions are similar to the functions in many UNIX libraries. However, since the UNIX and Macintosh operating systems have some fundamental differences, they cannot be identical. The descriptions of the functions tell you what the differences are.

The facilities in utime.h are:

• "utime" to set a file modification time
• "utimes" to set a series of file modification times