C言語実用アルゴリズムシリーズのタイムファミリー関数とディレクトリトラバーサル

時間家族機能テスト

コード

#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void main()
{
    
    
	time_t tt;//long __int64
	time(&tt);
	tm* time = localtime(&tt);

	char* ws[] = {
    
     "日","一","二","三","四","五","六" };
	printf("%d年%02d月%02d日（星期%s） %02d:%02d:%02d\n",
		time->tm_year + 1900, time->tm_mon + 1, time->tm_mday, ws[time->tm_wday],
		time->tm_hour, time->tm_min, time->tm_sec);

	tm time1 = {
    
     35,11,9,31,3 - 1,2011 - 1900 }; //将日期合成一个数字
	tt = mktime(&time1);
	time = localtime(&tt);
	printf("%d年%02d月%02d日（星期%s） %02d:%02d:%02d\n",
		time->tm_year + 1900, time->tm_mon + 1, time->tm_mday, ws[time->tm_wday],
		time->tm_hour, time->tm_min, time->tm_sec);
	printf("%ld\n", tt);
}

運転結果

ディレクトリトラバーサル

コード

#include <stdio.h>
#include <stdlib.h>
#include <io.h>
#include <time.h>

/*
struct _finddata64i32_t
{
    unsigned    attrib;
    __time64_t  time_create;    // -1 for FAT file systems
    __time64_t  time_access;    // -1 for FAT file systems
    __time64_t  time_write;
    _fsize_t    size;
    char        name[260];
};
*/

int main(void)
{
    
    
	struct _finddata_t c_file;
	intptr_t hFile;

	// Find first .c file in current directory 
	if ((hFile = _findfirst("C:\\*.*", &c_file)) == -1L)
		printf("No files in current directory!\n");
	else
	{
    
    
		printf("Listing of .c files\n\n");
		printf("RDO HID SYS ARC  FILE         DATE %25c SIZE\n", ' ');
		printf("--- --- --- ---  ----         ---- %25c ----\n", ' ');
		do {
    
    
			char buffer[30];
			printf((c_file.attrib & _A_RDONLY) ? " Y  " : " N  ");
			printf((c_file.attrib & _A_HIDDEN) ? " Y  " : " N  ");
			printf((c_file.attrib & _A_SYSTEM) ? " Y  " : " N  ");
			printf((c_file.attrib & _A_ARCH) ? " Y  " : " N  ");
			ctime_s(buffer, _countof(buffer), &c_file.time_write);
			printf(" %-30s %.24s  %9ld\n",
				c_file.name, buffer, c_file.size);
		} while (_findnext(hFile, &c_file) == 0);
		_findclose(hFile);
	}
}

運転結果