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Which characters make a URL invalid?
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Here's a regex that will determine if the entire string contains only the characters above: /^[!#$&-;=?-[]_a-z~]+$/
– Leif Wickland
Oct 7 '11 at 17:01
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When to use std::size_t?
... something so it's natural to use it, for example, getting the length of a string and then processing each character:
for (size_t i = 0, max = strlen (str); i < max; i++)
doSomethingWith (str[i]);
You do have to watch out for boundary conditions of course, since it's an unsigned type. The ...
Meaning of $? (dollar question mark) in shell scripts
...are both true; [ without an operator checks if the argument is a non-empty string.
– tripleee
Jun 30 '19 at 17:05
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Why does changing 0.1f to 0 slow down performance by 10x?
...ormance!!!
Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of times slower than on normalized floating-point. This is because many processors ca...
What is the right way to check for a null string in Objective-C?
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What type is title supposed to be? If it's an NSString, for instance, I receive the following warning: comparison of distinct Objective-C types 'struct NSNull *' and 'struct NSString *' lacks a cast Is there any way of removing this (I dunno if things have changed since...
What are C++ functors and their uses?
...rom class method, actually this is a delegate:
class SomeClass
{
std::string state_;
public:
SomeClass(const char* s) : state_(s) {}
void method( std::string param )
{
std::cout << state_ << param << std::endl;
}
};
SomeClass *inst = new SomeClass("Hi,...
How to get std::vector pointer to the raw data?
I'm trying to use std::vector as a char array.
3 Answers
3
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UINavigationBar custom back button without title
...ow show whatever you put for initWithTitle, which in this case is an empty string.
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What are the differences between delegates and events?
... this way:
public class ArgsSpecial : EventArgs
{
public ArgsSpecial (string val)
{
Operation=val;
}
public string Operation {get; set;}
}
public class Animal
{
// Empty delegate. In this way you are sure that value is always != null
// because no one outside of ...
List all developers on a project in Git
...roject statistics for a Git repository: https://github.com/visionmedia/git-extras
Check out the bin catalog to see the the different scripts.
For example, the git-count script (commit count per committer):
git shortlog -n $@ | grep "):" | sed 's|:||'
...