#include <dos.h> int setftime(int handle, struct ftime *ftimep);
This function sets the modification time of a file. Note that since writing to a file, and closing a file opened for writing, also sets the modification time, you should only use this function on files opened for reading.
See section getftime.
Zero on success, nonzero on failure.
not ANSI, not POSIX
int q = open("data.txt", O_RDONLY); struct ftime f; f.ft_sec = f.ft_min = f.ft_hour = f.ft_day = f.ft_month = f.ft_year = 0; setftime(q, &f); close(q);
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