大约有 23,200 项符合查询结果(耗时:0.0234秒) [XML]

https://stackoverflow.com/ques... 

What is the memory consumption of an object in Java?

...ded to a multiple of 8 bytes, so the minimum object size is 16 bytes. For 32-bit JVMs, the overhead is 8 bytes, padded to a multiple of 4 bytes. (From Dmitry Spikhalskiy's answer, Jayen's answer, and JavaWorld.) Typically, references are 4 bytes on 32bit platforms or on 64bit platforms up to -Xmx...
https://stackoverflow.com/ques... 

How to convert List to List?

... Exception raised - LINQ to Entities does not recognize the method 'Int32 IndexOf(Char)' method, and this method cannot be translated into a store expression. .net 4.0 – markthewizard1234 May 31 '16 at 8:22 ...
https://stackoverflow.com/ques... 

What is the difference between an int and a long in C++?

...me, but for example on Alpha systems a long was 64 bits whereas an int was 32 bits. This article covers the rules for the Intel C++ compiler on variable platforms. To summarize: OS arch size Windows IA-32 4 bytes Windows Intel 64 4 bytes Windows ...
https://stackoverflow.com/ques... 

Why does an NSInteger variable have to be cast to long when used as a format argument?

...s a 64-bit integer. The %i format, on the other hand, is for int, which is 32-bit. So the format and the actual parameter do not match in size. Since NSInteger is 32-bit or 64-bit, depending on the platform, the compiler recommends to add a cast to long generally. Update: Since iOS 7 supports 64-b...
https://stackoverflow.com/ques... 

What's the maximum value for an int in PHP?

..., although a maximum value of about two billion is the usual value (that's 32 bits signed). PHP does not support unsigned integers. Integer size can be determined using the constant PHP_INT_SIZE, and maximum value using the constant PHP_INT_MAX since PHP 4.4.0 and PHP 5.0.5. 64-bit platforms usually...
https://stackoverflow.com/ques... 

How do I properly clean up Excel interop objects?

...ndow (it's the first solution). Here is the simple code: [DllImport("user32.dll")] private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId); /// <summary> Tries to find and kill process by hWnd to the main window of the process.</summary> /// <param ...
https://stackoverflow.com/ques... 

Why does the C preprocessor interpret the word “linux” as the constant “1”?

... ricirici 189k2323 gold badges182182 silver badges260260 bronze badges ...
https://stackoverflow.com/ques... 

What is the JavaScript >>> operator and how do you use it?

...on-Numbers to Number, it converts them to Numbers that can be expressed as 32-bit unsigned ints. Although JavaScript's Numbers are double-precision floats(*), the bitwise operators (<<, >>, &, | and ~) are defined in terms of operations on 32-bit integers. Doing a bitwise operation ...
https://stackoverflow.com/ques... 

Unexpected results when working with very big integers on interpreted languages

... which supports arbitrary precision. It will produce the correct answer on 32 or 64 bit platforms. This can be seen by raising 2 to a power far greater than the bit width of the platform: >>> 2**99 633825300114114700748351602688L You can demonstrate (with Python) that the erroneous val...
https://stackoverflow.com/ques... 

Which one will execute faster, if (flag==0) or if (0==flag)?

...1; } int yoda(int c) { if (0 == c) { return 0; } return 1; } define i32 @regular(i32 %c) nounwind readnone { entry: %not. = icmp ne i32 %c, 0 ; <i1> [#uses=1] %.0 = zext i1 %not. to i32 ; <i32> [#uses=1] ret i32 %.0 } define i32 @yo...