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What is the difference between char * const and const char *?
...you can't change the value they point at.
This:
int *const i3 = (int*) 0x12345678;
defines a const pointer to an integer and initializes it to point at memory location 12345678. You can change the int value at address 12345678, but you can't change the address that i3 points to.
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...only match at that position or earlier. For example:
std::string test = "0123123";
size_t match1 = test.rfind("123"); // returns 4 (rightmost match)
size_t match2 = test.rfind("123", 2); // returns 1 (skipped over later match)
size_t match3 = test.rfind("123", 0); // returns std::string::npos (i...
Java: How to set Precision for double value? [duplicate]
...ts.
If you only want to print, use it this way:
System.out.printf("%.2f",123.234);
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Regular Expression to reformat a US phone number in Javascript
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Assuming you want the format "(123) 456-7890":
function formatPhoneNumber(phoneNumberString) {
var cleaned = ('' + phoneNumberString).replace(/\D/g, '')
var match = cleaned.match(/^(\d{3})(\d{3})(\d{4})$/)
if (match) {
return '(' + match[1] + ')...
How can I change Eclipse theme?
...11
With Eclipse 3.x, theme is only for the editors, as you can see in the site "Eclipse Color Themes".
Anything around that is managed by windows system colors.
That is what you need to change to have any influence on Eclipse global colors around editors.
Eclipse 4 will provide much advance theme ...
How can I convert a hex string to a byte array? [duplicate]
Can we convert a hex string to a byte array using a built-in function in C# or do I have to make a custom method for this?
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Find out time it took for a python script to complete execution
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import time
start = time.time()
fun()
# python 2
print 'It took', time.time()-start, 'seconds.'
# python 3
print('It took', time.time()-start, 'seconds.')
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Git - working on wrong branch - how to copy changes to existing topic branch
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Sounds like all you need is the following:
git stash
git checkout branch123
git stash apply
Then you should be back on your own branch without touching the master branch.
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How different is Objective-C from C++? [closed]
... highly recommend the guide LiraNuna pointed you to. Incidentally, another site of interest might be this.
I should also point out that I'm just starting learning Objective-C myself, and as such a lot of the above may not quite be correct or complete - I apologise if that's the case, and welcome su...
What's the best way to detect a 'touch screen' device using JavaScript?
...zr is a great, lightweight way to do all kinds of feature detection on any site.
It simply adds classes to the html element for each feature.
You can then target those features easily in CSS and JS. For example:
html.touch div {
width: 480px;
}
html.no-touch div {
width: auto;
}
And Ja...