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Pointer to pointer clarification
...(Technically I should say "lvalue" instead of "variable", but I feel it is more clear to describe mutable storage locations as "variables".)
So we have variables:
int i = 5, j = 6;
int *ip1 = &i, *ip2 = &j;
Variable ip1 contains a pointer. The & operator turns i into a pointer and th...
Good Hash Function for Strings
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Generally hashs take values and multiply it by a prime number (makes it more likely to generate unique hashes) So you could do something like:
int hash = 7;
for (int i = 0; i < strlen; i++) {
hash = hash*31 + charAt(i);
}
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How to use WinForms progress bar?
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How to Compare Flags in C#?
...( testItem.HasFlag( FlagTest.Flag1 ) )
{
// Do Stuff
}
which is much more readable, IMO.
The .NET source indicates that this performs the same logic as the accepted answer:
public Boolean HasFlag(Enum flag) {
if (!this.GetType().IsEquivalentTo(flag.GetType())) {
throw new Argumen...
How can one close HTML tags in Vim quickly?
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Understanding Spring @Autowired usage
...ond scan it injects the beans. Of course, you can define your beans in the more traditional XML file or with a @Configuration class (or any combination of the three).
The @Autowired annotation tells Spring where an injection needs to occur. If you put it on a method setMovieFinder it understands (b...
Why JavaScript rather than a standard browser virtual machine?
...on scripting language..." less. It's a great, flexible language with a lot more applicability than that.
– T.J. Crowder
Mar 11 '10 at 7:54
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“Invalid signature file” when attempting to run a .jar
...his jar have these files. When you make an uber jar, you're adding a bunch more files to the jar, and thus the signature is not correct. If you really wanted, you could re-sign the new jar, but of course it would be with your signature, not the old one. Alternatively, you could not distribute the ub...
ActionController::InvalidAuthenticityToken
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