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How can I pad an int with leading zeros when using cout
...tput an int with leading zeros, so the value 1 would be printed as 001 and the value 25 printed as 025 . How can I do this?
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Objective-C pass block as parameter
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The type of a block varies depending on its arguments and its return type. In the general case, block types are declared the same way function pointer types are, but replacing the * with a ^. One way to pass a block to a method is as follows:
- (void)iterateWidgets:(void (^)(id...
Please explain some of Paul Graham's points on Lisp
I need some help understanding some of the points from Paul Graham’s What Made Lisp Different .
4 Answers
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Use 'class' or 'typename' for template parameters? [duplicate]
...ommittee introduced a new keyword typename to resolve syntactic ambiguity, and decided to let it also be used to specify template types to reduce confusion, but for backward compatibility, class kept its overloaded meaning.
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How can I round down a number in Javascript?
... by JavaScript - can be emulated by using Math.ceil() for negative numbers and Math.floor() for positive numbers.
+3.5 => +3.0 using Math.floor()
-3.5 => -3.0 using Math.ceil()
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Operator overloading : member function vs. non-member function?
... as member function is asymmetric because it can have only one parameter and the other parameter passed automatically is the this pointer. So no standard exists to compare them. On the other hand, overloaded operator declared as a friend is symmetric because we pass two arguments of the same...
What is an API key? [closed]
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What "exactly" an API key is used for depends very much on who issues it, and what services it's being used for. By and large, however, an API key is the name given to some form of secret token which is submitted alongside web service (or similar) requests in order to identify the origin of the req...
Mocking a class: Mock() or patch()?
I am using mock with Python and was wondering which of those two approaches is better (read: more pythonic).
2 Answers
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How to replace case-insensitive literal substrings in Java
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Not as elegant perhaps as other approaches but it's pretty solid and easy to follow, esp. for people newer to Java. One thing that gets me about the String class is this: It's been around for a very long time and while it supports a global replace with regexp and a global replace with Str...
How do I get rid of this unwanted bar from Eclipse?
...ar right. It looks like a little C with a green circle, a black triangle, and some small blue thing in the back. Find that button on your eclipse toolbar and click it to show/hide breadcrumbs.
If you don't see it, let me know, and I can try to figure out which toolbar it is a part of.
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