我会将公历日期转换为回历(伊斯兰)日期。经过网上搜索,找到了转换的源代码。
我将代码从 Java 和 PHP 转换为 C 语言。
该工具有时工作时没有任何问题。但有些日子有问题。
我需要您的帮助,要么修复该工具,要么提供可以正常工作的可用代码!
顺便说一句,我找到了另一个源代码(http://emr.cs.iit.edu/~reingold/calendar.C) http://emr.cs.iit.edu/~reingold/calendar.C那是C++基础。因为我不知道 C++ 是否有人可以将其转换为 C Base 或 Objective C 将是完美的(仍然不确定此代码是否可以正常工作)。
附:您可以在以下位置检查正确的日期:islamicfinder.org/Hcal/index.php
void gregorian_to_hijri(int* h_y, int* h_m, int* h_d, int g_y, int g_m, int g_d)
{
int year, month, day;
int zyr;
int zd;
int zm;
int zy;
float zjd;
int zl;
int zn;
int zj;
year = g_y;
month = g_m;
day = g_d;
zyr = year;
zd = day;
zm = month;
zy = zyr;
if((zy > 1582) || ((zy == 1582) && (zm > 10)) || ((zy == 1582) && (zm == 10) && (zd > 14)))
{
zjd = ((1461 * (zy + 4800 + ((zm - 14) / 12))) / 4)
+ ((367 * (zm - 2 - 12 * (((zm - 14) / 12)))) / 12)
- ((3 * (((zy + 4900 + ((zm - 14) / 12)) / 100))) / 4) + zd - 32075;
}
else
{
zjd = 367 * zy - ((7 * (zy + 5001 + ((zm - 9) / 7))) / 4)
+ ((275 * zm) / 9) + zd + 1729777;
}
zl = zjd - 1948440 + 10632;
zn = ((zl - 1) / 10631);
zl = zl - 10631 * zn + 354;
zj = (((10985 - zl) / 5316)) * ((int)((50 * zl) / 17719))
+ ((zl / 5670)) * ((int)((43 * zl) / 15238));
zl = zl - (((30 - zj) / 15)) * (((17719 * zj) / 50))
- ((zj / 16)) * (((15238 * zj) / 43)) + 29;
zm = ((24 * zl) / 709);
zd = zl - ((709 * zm) / 24);
zy = 30 * zn + zj - 30;
*h_y = zy;
*h_m = zm;
*h_d = zd;
}
假设这是针对 Mac (Cocoa) 或 iOS (Cocoa Touch) 应用程序,因为这是您最常看到 Objective C 的地方,那么您可以执行以下操作:
// Create a Gregorian Calendar
NSCalendar *gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
// Set up components of a Gregorian date
NSDateComponents *gregorianComponents = [[NSDateComponents alloc] init];
gregorianComponents.day = 4;
gregorianComponents.month = 12;
gregorianComponents.year = 2010;
// Create the date
NSDate *date = [gregorianCalendar dateFromComponents:gregorianComponents];
[gregorianComponents release];
[gregorianCalendar release];
// Then create an Islamic calendar
NSCalendar *hijriCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSIslamicCivilCalendar];
// And grab those date components for the same date
NSDateComponents *hijriComponents = [hijriCalendar components:(NSDayCalendarUnit |
NSMonthCalendarUnit |
NSYearCalendarUnit)
fromDate:date];
NSLog(@"[In Hijri calendar ->] Day: %ld, Month: %ld, Year:%ld",
[hijriComponents day],
[hijriComponents month],
[hijriComponents year]);
[hijriCalendar release];
如果您想要的只是当前日期,那么您可以完全跳过设置公历日期,只需执行以下操作:
// Create an Islamic calendar
NSCalendar *hijriCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSIslamicCalendar];
// And grab the date components for the current date
NSDateComponents *hijriComponents = [hijriCalendar components:(NSDayCalendarUnit |
NSMonthCalendarUnit |
NSYearCalendarUnit)
fromDate:[NSDate date]];
[hijriCalendar release];
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