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do {…} while(false)
...o out of a block most definitely causes local variables to be destroyed in C++, same as break. And in C variables aren't really destroyed, their stack space is simply reclaimed.
– Ben Voigt
Feb 23 '10 at 16:00
...
How to draw a rounded Rectangle on HTML Canvas?
...ifferent radii for each corner, others default to 0
roundRect(ctx, 300, 5, 200, 100, {
tl: 50,
br: 25
}, true);
/**
* Draws a rounded rectangle using the current state of the canvas.
* If you omit the last three params, it will draw a rectangle
* outline with a 5 pixel border radius
* @para...
C libcurl get output into a string
...
for C++ std::string go here
– Trevor Boyd Smith
Sep 4 '18 at 14:40
add a comment
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How to get Latitude and Longitude of the mobile device in android?
...titude();
}
}
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener);
You'll need to give your application the ACCESS_FINE_LOCATION permission if you want to use GPS.
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
You may also ...
Better way to set distance between flexbox items
...
.upper.mc /* multicol test */
{flex-direction:column;flex-wrap:wrap;width:200px;height:200px;}
<div class="upper">
<div>aaa<br/>aaa</div>
<div>aaa</div>
<div>aaa<br/>aaa</div>
<div>aaa<br/>aaa<br/>aaa</div>
<...
What is “missing” in the Visual Studio 2008 Express Editions?
...ling or test framework support
No MFC/ATL support
No support for compiling C++ to 64-bit images (workaround is to install Windows SDK which is free)
NOTE: it is often said that the Express EULA does not permit commercial development - that is not true (Visual Studio Express FAQ Item 7)
...
What is the fastest way to send 100,000 HTTP requests in Python?
...ng import Thread
import httplib, sys
from Queue import Queue
concurrent = 200
def doWork():
while True:
url = q.get()
status, url = getStatus(url)
doSomethingWithResult(status, url)
q.task_done()
def getStatus(ourl):
try:
url = urlparse(ourl)
...
Overloading member access operators ->, .*
...ry dereferencing operator * (i.e. the first part of what -> does).
The C++ -> operator is basically the union of two steps and this is clear if you think that x->y is equivalent to (*x).y. C++ allows you to customize what to do with the (*x) part when x is an instance of your class.
The s...
How to suppress GCC warnings from library headers?
...ou're trying to do this in XCode then stick -isystem path into your "other C++ flags" in the "custom compiler flags" in your target build settings.
– Matt Parkins
Dec 11 '13 at 12:08
...
How do you set, clear, and toggle a single bit?
...it to either 1 or 0 can be achieved with the following on a 2's complement C++ implementation:
number ^= (-x ^ number) & (1UL << n);
Bit n will be set if x is 1, and cleared if x is 0. If x has some other value, you get garbage. x = !!x will booleanize it to 0 or 1.
To make this indepen...