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What exactly does an #if 0 … #endif block do?
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142
Not only does it not get executed, it doesn't even get compiled.
#if is a preprocessor command...
C/C++ line number
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answered May 17 '10 at 14:27
Julien HoarauJulien Hoarau
44.7k1818 gold badges120120 silver badges114114 bronze badges
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Why are unnamed namespaces used and what are their benefits?
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Adrian
33122 silver badges1414 bronze badges
answered Dec 10 '08 at 20:19
Johannes Schaub - litbJohannes Schaub - litb
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List of all index & index columns in SQL Server DB
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edited Sep 24 at 2:11
jswolf19
2,2771414 silver badges1515 bronze badges
answered Apr 19 '...
How to pass optional arguments to a method in C++?
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145
Here is an example of passing mode as optional parameter
void myfunc(int blah, int mode = 0)
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Can anyone explain this strange behavior with signed floats in C#?
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answered Mar 24 '10 at 15:55
SLaksSLaks
770k161161 gold badges17711771 silver badges18631863 bronze badges
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Is the sizeof(some pointer) always equal to four?
For example:
sizeof(char*) returns 4. As does int* , long long* , everything that I've tried. Are there any exceptions to this?
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转：postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ix安装Q&A 原文地址：http: bbs.chinaunix.net viewthread.php?tid=770141执照wangmingda老大的资料安装成功postfix（地址在这里http: www.extmail....
原文地址：http://bbs.chinaunix.net/viewthread.php?tid=770141
执照wangmingda老大的资料安...
不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...题的时候，可以自动切换到备防火墙上。第一台设备 ASG 425 支持OSPF...拓扑如下
主机A ，B有两个可用路由要实现主备切换，当主防火墙出现问题的时候，可以自动切换到备防火墙上。
第一台设备 ASG 425 支持OSPF BGP PIM路由协...