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Why do we need C Unions?
...nt i;
float f;
} u;
// Convert floating-point bits to integer:
u.f = 3.14159f;
printf("As integer: %08x\n", u.i);
Although this is technically undefined behavior according to the C standard (you're only supposed to read the field which was most recently written), it will act in a well-defined m...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...amount greater than or equal to the number of bits in the number (e.g. int64_t i = 1; i <<= 72 is undefined)
Types, Cast and Const
Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)
Using an automatic variable before it has ...
How to cherry-pick multiple commits
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answered Oct 14 '10 at 13:08
Eric DarchisEric Darchis
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How can I use “sizeof” in a preprocessor macro?
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edited Jan 4 '19 at 14:42
Henrik Juul Pedersen
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answered Aug 29 '13 at...
How to delete a cookie?
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answered Jan 27 '10 at 3:34
ACPACP
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OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...于libev，对libev不了解的参见 这
这篇主要分析OceanBase 0.4的mergeserver使用libeasy作为服务器端的模式，客户端自然就是MySQL客户端。OceanBase仅仅使用了libeasy的IO线程部分，工作线程是使用了我们自己的线程池。
主要说如下几个方面...
Stop and Start a service via batch or cmd file?
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348
Use the SC (service control) command, it gives you a lot more options than just start & sto...
static constructors in C++? I need to initialize private static objects
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Daniel EarwickerDaniel Earwicker
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Quickly find whether a value is present in a C array?
...ical ISR that needs to iterate through an array of size 256 (preferably 1024, but 256 is the minimum) and check if a value matches the arrays contents. A bool will be set to true is this is the case.
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Disable all table constraints in Oracle
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148
It is better to avoid writing out temporary spool files. Use a PL/SQL block. You can run this...