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NULL vs nullptr (Why was it replaced?) [duplicate]
I know that in C++ 0x or NULL was replaced by nullptr in pointer-based applications. I'm just curious of the exact reason why they made this replacement?
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What exactly is metaprogramming?
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Don't forget about template metaprogramming in C++. The ability to execute expressions and make decisions at compile-time, and have the results be compiled statically into the final executable.
– Remy Lebeau
May 23 '14 at 3:07
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Beyond Stack Sampling: C++ Profilers
...se the int main() dominates the graph.
If you're doing anything crazy with C++ templates you'll probably want to add --strip. This is especially true with Boost.
I use OProfile to generate my sampling data. To get good output I need configure it to load the debug symbols from my 3rd party and syst...
XMLHttpRequest status 0 (responseText is empty)
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I'm having status=0 (but status 200 on network) using Load temporary add-on on firefox
– JobaDiniz
Aug 22 '17 at 17:24
1
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Make child visible outside an overflow:hidden parent
...px; left: 10px;">asd
<div style="background: #00ffff; width: 200px; overflow: visible; position: absolute; visibility: visible; clear:both; height: 1000px; top: 100px; left: 10px;"> a</div>
</div>
</div>
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Converting A String To Hexadecimal In Java
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200
Here's a short way to convert it to hex:
public String toHex(String arg) {
return String....
C++ map access discards qualifiers (const)
...an std::pair containing both the key (.first) and the value (.second).
In C++11, you could also use at() for std::map. If element doesn't exist the function throws a std::out_of_range exception, in contrast to operator [].
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center aligning a fixed position div
...der: 2px dashed red;
box-sizing: border-box;
}
.element {
width: 200px;
height: 80px;
/* Just for styling */
background-color: lightyellow;
border: 2px dashed purple;
}
<div class="wrapper"> <!-- Fixed element that spans the viewport -->
<div class="elemen...
bool to int conversion
...Standard conformant. bool to int conversion is implicit!
§4.7/4 from the C++ Standard says (Integral Conversion)
If the source type is bool, the value false is converted to zero and
the value true is converted to one.
As for C, as far as I know there is no bool in C. (before 1999) So boo...
CABasicAnimation resets to initial value after animation completes
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This 200+ point answer is totally, completely, utterly incorrect.
– Fattie
Aug 27 '19 at 19:23
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