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Convert char to int in C and C++
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Well, in ASCII code, the numbers (digits) start from 48. All you need to do is:
int x = (int)character - 48;
Or, since the character '0' has the ASCII code of 48, you can just write:
int x = character - '0'; // The (int) cast is not necessary.
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How do I find the caller of a method using stacktrace or reflection?
I need to find the caller of a method. Is it possible using stacktrace or reflection?
12 Answers
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Is it possible to change only the alpha of a rgba background colour on hover?
...s/Script/…
– Arian Acosta
Aug 12 '16 at 2:08
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Maximum single-sell profit
...oblem in each subarray, then combining the two together. Turns out we actually can do this, and can do so efficiently! The intuition is as follows. If we have a single day, the best option is to buy on that day and then sell it back on the same day for no profit. Otherwise, split the array into ...
Android EditText delete(backspace) key event
... common mistake we are checking KeyEvent.KEYCODE_BACK for backspace, but really it is KeyEvent.KEYCODE_DEL (Really that name is very confusing! )
editText.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
//...
How to use ng-repeat for dictionaries in AngularJs?
...very similar to ng-repeat directive. The difference is that is will repeat all the HTML elements (including the tag it's defined on) up to the ending HTML tag where ng-repeat-end is placed (including the tag with ng-repeat-end).
Sample code (from a controller):
// ...
$scope.users = {};
$scope.us...
Invalidating JSON Web Tokens
...s an emergency, or a user token was compromised, one thing you could do is allow the user to change an underlying user lookup ID with their login credentials. This would render all associated tokens invalid, as the associated user would no longer be able to be found.
I also wanted to note that it is...
Android: create a popup that has multiple selection options
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edited Mar 7 '19 at 17:16
answered Feb 21 '19 at 22:58
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.NET HttpClient. How to POST string value?
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answered Mar 2 '13 at 16:22
Darin DimitrovDarin Dimitrov
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Failed to Attach to Process ID Xcode
...-> In the each simulator version of iOS -> Applications -> Delete all the files present here.
Now go to Products -> Clean
Now run it on any simulator and it will work.
Method 2 :
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