大约有 9,000 项符合查询结果(耗时:0.0240秒) [XML]

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How does one generate a random number in Apple's Swift language?

... Swift, but the base functions are limited to 32-bit integer types (Int is 64-bit on iPhone 5S and modern Macs). Here's a generic function for a random number of a type expressible by an integer literal: public func arc4random<T: ExpressibleByIntegerLiteral>(_ type: T.Type) -> T { var ...
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Failed to load the JNI shared Library (JDK)

... You need a 64-bit trio: 64-bit OS 64-bit Java 64-bit Eclipse share | improve this answer | follow ...
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How can I convert an image into a Base64 string?

What is the code to transform an image (maximum of 200 KB) into a Base64 String? 14 Answers ...
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Can I get Memcached running on a Windows (x64) 64bit environment?

...yone know IF , WHEN or HOW I can get Memcached running on a Windows 64bit environment? 13 Answers ...
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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_

... a very weird effect: Changing the loop variable from unsigned to uint64_t made the performance drop by 50% on my PC. ...
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笑话几则 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...师父跑不了,有银行跟交警看着呢!” 科比惊呆了 一中国学生问科比:“请问您成功的秘诀是什么?”科比说:“你知道早晨四点的城市是什么样吗?”学生:“知道,一般那时候我还没睡,怎么了?”科比:“没,没什么。...
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蜘蛛的故事 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...佛的时候,正好甘鹿也陪同母亲而来。上完香拜过佛,二长者在一边说上了话。蛛儿和甘鹿便来到走廊上聊天,蛛儿很开心,终于可以和喜欢的人在一起了,但是甘鹿并没有表现出对她的喜爱。蛛儿对甘鹿说:“你难道不曾记...
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C++中判断文件、目录是否存在的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...t.st_mode & _S_IFDIR)) { isExist = true; } _S_IFDIR 是一个标志,如果是目录的话,该就会被系统设置。 在linux底下也有相对应的函数stat(); 使用方法基本相同: struct stat fileStat; if ((stat(dir.c_str(), &fileStat) == 0) && S_ISDIR(fileStat.st...
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AfxGetApp->GetMainWnd() 与 AfxGetMainWnd() - C/C++ - 清泛网 - 专注C/C++及内核技术

...的,通过下面的跟踪代码你不难看出.  记得当初有一前辈曾提到过这个问题,只是不知它是否理解这其中的原因 以下是跟踪代码: _AFXWIN_INLINE CWnd* AFXAPI AfxGetMainWnd() { CWinThread* pThread = AfxGetThread(); return pThread != NULL ...
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C语言面试那些事儿──一道指针与数组问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...cc 4.4.5的运行结果: size of a: 20 (bytes) (Why? 因为机器是32的, size of int 为 4 bytes,a有5个int) size of ptr: 4 (bytes) (ptr是指针,永远不要忘记,32字长的机器,指针长度是4) ptr的地址:bfb5c52c (取决于具体情况,这里只是为了...