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boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
..."boost/bimap.hpp"
#include "boost/tuple/tuple.hpp"
#include "boost/multi_index_container.hpp"
#include "boost/multi_index/member.hpp"
#include "boost/multi_index/ordered_index.hpp"
#include "boost/multi_index/composite_key.hpp"
#include "boost/multi_index/identity.hpp"
#include "boost/multi_i...
mongodb: insert if not exists
...
You could always make a unique index, which causes MongoDB to reject a conflicting save. Consider the following done using the mongodb shell:
> db.getCollection("test").insert ({a:1, b:2, c:3})
> db.getCollection("test").find()
{ "_id" : ObjectId("5...
“Pretty” Continuous Integration for Python
...nstall the local package
call_command("%sbin/pip install -e ./ --extra-index %s" % (venvDir, UPLOAD_REPO),
options.workspace)
#make sure pylint, nose and coverage are installed
call_command("%sbin/pip install nose pylint coverage epydoc" % venvDir,
opti...
Create an index on a huge MySQL production table without table locking
I need to create an index on a ~5M rows MySQL table. It is a production table, and I fear a complete block of everything if I run a CREATE INDEX statement...
...
How do I print the elements of a C++ vector in GDB?
...ument print_vector
Display vector contents
Usage: print_vector VECTOR_NAME INDEX
VECTOR_NAME is the name of the vector
INDEX is an optional argument specifying the element to display
end
After restarting gdb (or sourcing ~/.gdbinit), show the associated help like this
gdb) help print_vector
Displ...
How to set the authorization header using curl
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@Vixed This question is explicitly not about PHP. [What's wrong with Google's results](s)?
– Oli
Apr 8 '16 at 14:16
1
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Most efficient way to remove special characters from string
...alCharacters(string str) {
char[] buffer = new char[str.Length];
int index = 0;
foreach (char c in str) {
if (_lookup[c]) {
buffer[index] = c;
index++;
}
}
return new string(buffer, 0, index);
}
...
Java equivalent to Explode and Implode(PHP) [closed]
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Thanks u guys for all your answers .
– Pankaj Wanjari
May 28 '13 at 5:55
1
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HTML if image is not found
...u want page to be parsed correctly by search engines. Search engines could index your content data incorrectly.
– varela
Sep 7 '17 at 8:08
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How do I access command line arguments in Python?
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@KolobCanyon it means "take a sublist starting from index 1 till the end", i.e. skip the first element
– Kamil Jarosz
May 2 '18 at 8:00
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