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ctime(p1)
public
Returns the change time for the named file (the time at which directory
information about the file was changed, not the file itself).
file_name can be an IO object.
Note that on Windows (NTFS), returns creation time (birth time).
File.ctime("testfile")
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static VALUE
rb_file_s_ctime(VALUE klass, VALUE fname)
{
struct stat st;
if (rb_stat(fname, &st) < 0) {
int e = errno;
FilePathValue(fname);
rb_syserr_fail_path(e, fname);
}
return stat_ctime(&st);
}