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BSS段、数据段、代码段、堆与栈 剖析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...30000];
void main()
{
......
}
程序2:
int ar[300000] = {1, 2, 3, 4, 5, 6 };
void main()
{
......
}
发现程序2 编译之后所得的.exe 文件比程序1 的要大得多。当下甚为不解，于是手工编译了一下，并使用了/FAs 编译选项来查看了一下其各自...
What is the difference between RegExp’s exec() function and String’s match() function?
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Ry-♦Ry-
192k4444 gold badges392392 silver badges404404 bronze badges
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How to use `subprocess` command with pipes
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452
To use a pipe with the subprocess module, you have to pass shell=True.
However, this isn't re...
Tools for making latex tables in R [closed]
...roduce tables for different regression objects. One such example is the lme4 memisc code shown in the question. It might make sense to start a github repository to collect such code snippets, and over time maybe even add it to the memisc package. Any takers?
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Improve INSERT-per-second performance of SQLite
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edited Jun 4 '18 at 15:07
community wiki
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How can I create an error 404 in PHP?
...
The up-to-date answer (as of PHP 5.4 or newer) for generating 404 pages is to use http_response_code:
<?php
http_response_code(404);
include('my_404.php'); // provide your own HTML for the error page
die();
die() is not strictly necessary, but it makes s...
An efficient way to transpose a file in Bash
...];
}
print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl ...
Tools to generate database tables diagram with Postgresql? [closed]
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edited May 16 '18 at 20:24
JDiMatteo
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answered J...
Most Useful Attributes [closed]
...
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edited Jan 14 '19 at 18:26
community wiki
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Starting iPhone app development in Linux? [closed]
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answered May 29 '09 at 0:46
ChaosChaos
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