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NSLog/printf specifier for NSInteger?
A NSInteger is 32 bits on 32-bit platforms, and 64 bits on 64-bit platforms. Is there a NSLog specifier that always matches the size of NSInteger ?
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Are default enum values in C the same for all compilers?
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4 Answers
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Closing multiple issues in Github with a commit message
... fixes is a valid synonym:
This fixes a memory leak in foo() that closes #4,
also fixes #5 which is a duplicate.
The following used to work, but nowadays only references issues #2 and #3.
Closes #1, #2, #3
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What is the meaning of “__attribute__((packed, aligned(4))) ”
... or writes to a memory address, it will do this in word sized chunks (e.g. 4 byte chunks on a 32-bit system). Data alignment means putting the data at a memory offset equal to some multiple of the word size, which increases the system's performance due to the way the CPU handles memory.
To align th...
C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
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a ^ b
<<
位左移运算
2
a<<4
>>
位右移运算
2
a>>2
1、位逻辑非运算
位逻辑非运算是单目的，只有一个运算对象。位逻辑非运算按位对运算对象的值进行非运算...
Passing multiple error classes to ruby's rescue clause in a DRY fashion
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edited Jan 14 '16 at 2:08
user513951
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List files committed for a revision
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244
svn log --verbose -r 42
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Check if a Postgres JSON array contains a string
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4 Answers
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What do the different readystates in XMLHttpRequest mean, and how can I use them?
...HttpRequest has 5 readyState s, and I only use 1 of them (the last one, 4 ).
5 Answers
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