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How do I get the directory that a program is running from?
Is there a platform-agnostic and filesystem-agnostic method to obtain the full path of the directory from where a program is running using C/C++? Not to be confused with the current working directory. (Please don't suggest libraries unless they're standard ones like clib or STL.)
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How do I quickly rename a MySQL database (change schema name)?
...ew_db.$table;"; done;
Notes:
There is no space between the option -p and the password. If your database has no password, remove the -u username -ppassword part.
If some table has a trigger, it cannot be moved to another database using above method (will result Trigger in wrong schema error). I...
Generate random numbers with a given (numerical) distribution
... You can then use the rvs() method of the distribution object to generate random numbers.
As pointed out by Eugene Pakhomov in the comments, you can also pass a p keyword parameter to numpy.random.choice(), e.g.
numpy.random.choice(numpy.arange(1, 7), p=[0.1, 0.05, 0.05, 0.2, 0.4, 0.2])
If you a...
Load multiple packages at once
...w can I load a bunch of packages at once with out retyping the require command over and over? I've tried three approaches all of which crash and burn.
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LINUX: Link all files from one to another directory [closed]
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This does not include hidden files, and it links whole directories. If either of these is not what you want, see my answer. Otherwise, it's the shortest way.
– Cascabel
Aug 28 '09 at 14:17
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In OS X Lion, LANG is not set to UTF-8, how to fix it?
I try to setup postgress in OS X Lion, and find that is not correctly setup the LOCALE environment var.
5 Answers
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SQL join: selecting the last records in a one-to-many relationship
Suppose I have a table of customers and a table of purchases. Each purchase belongs to one customer. I want to get a list of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe
...e if there are no nulls in the DB, but will fail once nulls are inserted.
And you can always return the primitive type from the getter. Ex:
private Integer num;
public void setNum(Integer i) {
this.num = i;
}
public int getNum() {
return this.num;
}
But in most cases you will...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Android应用开发性能优化完全分析1 背景其实有点不想写这篇文章的，但是又想写，有些矛盾。不想写的原因是随便上网一搜一堆关于性能的建议，感觉大家你一总结、我一总结的...1 背景
其实有点不想写这篇文章的，但是又想...
const char * const versus const char *?
I'm running through some example programs to refamiliarize myself with C++ and I have run into the following question. First, here is the example code:
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