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std::string formatting like sprintf
I have to format std::string with sprintf and send it into file stream. How can I do this?
40 Answers
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Can the Unix list command 'ls' output numerical chmod permissions?
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For creating it as an alias (example below: 'cls' command), use: alias cls="ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr(\$1,i+2,1)~/[rwx]/)*2^(8-i));if(k)printf(\"%0o \",k);print}'"
– danger89
Mar 6 '14 at 16:15
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Python - Create a list with initial capacity
...i]= message
return result
Results. (evaluate each function 144 times and average the duration)
simple append 0.0102
pre-allocate 0.0098
Conclusion. It barely matters.
Premature optimization is the root of all evil.
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Internet Explorer's CSS rules limits
...n regarding Internet Explorer's silly CSS limits. I am (think I am) understanding that you can only have 31 <style> and <link> tags (combined), and that each sheet can have up to 31 @import -s (so 31 <link> -s, each to 31 @import -s is fine, albeit insane).
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Understanding FFT output
I need some help understanding the output of the DFT/FFT computation.
4 Answers
4
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Multiple “order by” in LINQ
I have two tables, movies and categories , and I get an ordered list by categoryID first and then by Name .
7 Answers...
总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...两个无关的类之间的转换
// Convert between CBaseX* and CBaseY*
// CBaseX* 和 CBaseY*之间的转换
CBaseX* pX = new CBaseX();
// Error, types pointed to are unrelated
// 错误， 类型指向是无关的
// CBaseY* pY1 = static_cast<CBaseY*...
Delete local Git branches after deleting them on the remote repo
I want to have my local and remote repositories always in sync in terms of branches.
11 Answers
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C#: Looping through lines of multiline string
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I suggest using a combination of StringReader and my LineReader class, which is part of MiscUtil but also available in this StackOverflow answer - you can easily copy just that class into your own utility project. You'd use it like this:
string text = @"First line
secon...
What is the fastest way to compare two sets in Java?
...ething if needs be
}
If you need to get the elements that are in one set and not the other.
EDIT: set.removeAll(otherSet) returns a boolean, not a set. To use removeAll(), you'll have to copy the set then use it.
Set one = new HashSet<>(firstSet);
Set two = new HashSet<>(secondSet);
o...