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Iteration over std::vector: unsigned vs signed index variable
...s use the prefix increment form for iterators whose definitions you don't know. That will ensure your code runs as generic as possible.
Using Range C++11
for(auto const& value: a) {
/* std::cout << value; ... */
Using indices
for(std::vector<int>::size_type i = 0; i != v.s...
Display names of all constraints for a table in Oracle SQL
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You need to query the data dictionary, specifically the USER_CONS_COLUMNS view to see the table columns and corresponding constraints:
SELECT *
FROM user_cons_columns
WHERE table_name = '<your table name>';
FYI, unless you specifically created your table w...
Passing a list of kwargs?
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ah, I wasn't paying attention. Should be better now.
– David Z
Sep 30 '09 at 20:26
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Jasmine.js comparing arrays
...yTheEntity "The addMatchers function is no longer on the spec (this) it is now on the global jasmine object." - see Jasmine docs
– rwisch45
May 1 '16 at 10:46
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How to check which version of v8 is installed with my NodeJS?
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Best answer to know. Also, NPM's CLI is a whackadoo-- if you add an argument onto this, it will increment the version in your package.json file, make and tag a git commit. Utterly bizarre UX, but this is useful.
– mitchell_st
Mar 2 '17 at 1...
Using Rails 3.1, where do you put your “page specific” JavaScript code?
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+1 This is great to know for a newbie like me. I'd give it +2 if I could.
– jrhorn424
Mar 17 '12 at 22:16
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iPhone App 开发第一步:从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...机器(intel已经可以装lion了,此处不再讨论),应用darwin_snow_legacy.iso,进行引导,之后一路安装直至成功;
(2)安装完成后,装VMTools实现共享,以及声卡驱动;(3)之后要对系统进行升级(我是从10.6升级至10.6.7),升...
Type.GetType(“namespace.a.b.ClassName”) returns null
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Type.GetType("namespace.qualified.TypeName") only works when the type is found in either mscorlib.dll or the currently executing assembly.
If neither of those things are true, you'll need an assembly-qualified name:
Type.GetType("namespace.qualified.T...
What are the basic rules and idioms for operator overloading?
...erator
The function call operator, used to create function objects, also known as functors, must be defined as a member function, so it always has the implicit this argument of member functions. Other than this, it can be overloaded to take any number of additional arguments, including zero.
Here'...
Reset auto increment counter in postgres
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If you created the table product with an id column, then the sequence is not simply called product, but rather product_id_seq (that is, ${table}_${column}_seq).
This is the ALTER SEQUENCE command you need:
ALTER SEQUENCE pr...
