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64 bit OS下int占几个字节？ - C/C++ - 清泛网 - 专注C/C++及内核技术
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__int64才是8位的。
另外，指针是受编译器/OS影响的，32 bit编译器下int指针占4位，64 bit下int指针占8位。
写个小demo稍微验证下即可，结论：无论32/64位编译器、32/64位OS，结果都是4。
只与编译器位数有关，与OS位数无关...
PHP操作MongoDB时的整数问题及对策 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...是PHP驱动的问题：MongoDB本身有两种整数类型，分别是：32位整数和64位整数，但旧版的PHP...本文所说的整数问题，其实并不是MongoDB的问题，而是PHP驱动的问题：MongoDB本身有两种整数类型，分别是：32位整数和64位整数，但旧版的P...
How can I return an empty IEnumerable?
...le
– Chris Marisic
Jul 12 '10 at 15:32
6
Pardon my ignorance on the subject, but could you please...
How can I tell Moq to return a Task?
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Seth Flowers
8,29522 gold badges2323 silver badges3939 bronze badges
answered Jan 21 '14 at 11:04
Panagiotis KanavosPanagiotis Kanavos...
Rails.env vs RAILS_ENV
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ENV['RAILS_ENV'] is now deprecated.
You should use Rails.env which is clearly much nicer.
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Android SDK manager won't open
...your java\bin directory is in your path statement before the windows\system32 directory.
The SDK Manager uses java and it was finding the one in the system32 folder.
In a CMD window, you can run 'where java'.
Don't forget to restart your CMD after changing the path variable for checking.
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How to open the Chrome Developer Tools in a new window?
... option before but can't find in 39.0.2171.95.
– user3285954
Jan 2 '15 at 15:51
94
What a terribl...
Difference between setUp() and setUpBeforeClass()
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answered Aug 5 '10 at 9:32
madhurtanwanimadhurtanwani
1,20777 silver badges1313 bronze badges
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How to run Maven from another directory (without cd to project dir)?
...red.
– user2043553
Jan 24 '19 at 12:32
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show 2 more comments
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Is floating-point math consistent in C#? Can it be?
...code is not possible.
The workarounds I considered:
Implement FixedPoint32 in C#. While this is not too hard(I have a half finished implementation) the very small range of values makes it annoying to use. You have to be careful at all times so you neither overflow, nor lose too much precision. In...