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“std::endl” vs “\n”
Many C++ books contain example code like this...
12 Answers
12
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C++ static virtual members?
Is it possible in C++ to have a member function that is both static and virtual ? Apparently, there isn't a straightforward way to do it ( static virtual member(); is a compile error), but is there at least a way to achieve the same effect?
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Passing references to pointers in C++
...ere's no reason I shouldn't be allowed to pass a reference to a pointer in C++. However, my attempts to do so are failing, and I have no idea why.
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How well is Unicode supported in C++11?
I've read and heard that C++11 supports Unicode. A few questions on that:
5 Answers
5
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c++11 Return value optimization or move? [duplicate]
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GCC documentation on -fno-elide-constructors: "The C++ standard allows an implementation to omit creating a temporary that is only used to initialize another object of the same type. Specifying this option disables that optimization, and forces G++ to call the copy constructo...
Determining 32 vs 64 bit in C++
I'm looking for a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we ...
How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
...: 0;
top: 50%;
border-top: dashed 1px #ccc;
}
.child {
width: 200px;
height: 200px;
background: rgba(200, 198, 133, .5);
}
ul {
padding: 5% 20px;
}
.set1 .child {
margin: 0;
position: relative;
}
.set2 .child {
margin-left: 75px;
position: relative;
}
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What does “dereferencing” a pointer mean?
...rested in the pointed-to object's (current) value - I focus below on C and C++.
A pointer scenario
Consider in C, given a pointer such as p below...
const char* p = "abc";
...four bytes with the numerical values used to encode the letters 'a', 'b', 'c', and a 0 byte to denote the end of the tex...
MFC OnEraseBkgnd浅析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...严重的闪烁效果，有时看到屏幕白的一条一闪而过，非常不爽。如果将该函数返回值设为TRUE，即不进行背景重绘，虽然屏幕的刷新仍然会闪烁，但是就不会像原来那么严重了。因为窗口的颜色通常与白色反差加大，所以闪烁比...
C++: Rounding up to the nearest multiple of a number
...s? What about negative numbers? The behaviour seems to be undefined in pre-C++11.
– cubuspl42
Aug 18 '15 at 16:28
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