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可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
...h>
#include <pwd.h>
static void func(int signo)
{
struct passwd *rootptr;
if( ( rootptr = getpwnam( "root" ) ) == NULL )
{
err_sys( "getpwnam error" );
}
signal(SIGALRM,func);
alarm(1);
}
int main(int argc, char** argv)
{
signal(SIGALRM,func);
...
How to split a comma-separated value to columns
... @S = 'ab,cd,ef,gh,ij',
@Split = ','
SELECT @X = CONVERT(xml,' <root> <myvalue>' +
REPLACE(@S,@Split,'</myvalue> <myvalue>') + '</myvalue> </root> ')
SELECT T.c.value('.','varchar(20)'), --retrieve ALL values at once
T.c.value('(/root/my...
Python: Get relative path from comparing two absolute paths
... print os.path.commonprefix(['/tmp', '/usr/var']) # No common prefix: the root is the common prefix
'/'
You can thus test whether the common prefix is one of the paths, i.e. if one of the paths is a common ancestor:
paths = […, …, …]
common_prefix = os.path.commonprefix(list_of_paths)
if c...
generate days from date range
...
The question is mysql tagged...
– Sebastian Palma
Aug 31 at 18:48
add a comment
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Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
...xchange.com/questions/299408/how-to-login-automatically-without-typing-the-root-username-or-password-in-build/300152#300152
multi-call binaries, perhaps most notably Busybox. These symlink multiple names e.g. /bin/sh and /bin/ls to a single exebutable /bin/busybox, which recognizes which tool to use...
.append(), prepend(), .after() and .before()
...
<div></div>
// <-- $(".root").before("<div></div>");
<div class="root">
// <-- $(".root").prepend("<div></div>");
<div></div>
// <-- $(".root").append("<div></div>");
</div>
//...
Why does DEBUG=False setting make my django Static Files Access fail?
...urls in urlpatterns:
url(r'^media/(?P<path>.*)$', serve,{'document_root': settings.MEDIA_ROOT}),
url(r'^static/(?P<path>.*)$', serve,{'document_root': settings.STATIC_ROOT}),
and both static and media files were accesible when DEBUG=FALSE.
Hope it helps :)
...
What integer hash function are good that accepts an integer hash key?
...Code() in java.lang.Integer grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/…
– Juande Carrion
Oct 4 '12 at 16:56
...
Proper Repository Pattern Design in PHP?
...ally hard to replace the underlying technology. If you store everything in MySQL now and want to move to MongoDB, it's a lot harder to replace 100 ad-hoc calls than it is a handful of entities.
Q: I will have too many methods in my repository.
A: I haven't really seen any way around this other th...
Pass data to layout that are common to all pages
...ting from scratch, you may chose to derive all your models from the common root instead.
– DenNukem
Sep 23 '15 at 23:08
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