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Is there a constraint that restricts my generic method to numeric types?
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I do not agree to Heijsberg's phrase "So in a sense, C++ templates are actually untyped, or loosely typed. Whereas C# generics are strongly typed. ". That's really Marketing BS to promote C#. Strong/Weak-typing has not to do with quality of diagnostics. Otherwise: Interesting f...
How and why do I set up a C# build machine? [closed]
... We uses a build machine here with NAnt/Subversion/CC.Net for C# and C++ builds and it's really a great tool to be sure that you haven't break any other project. It remove a lot of the fear of breaking another project when changing a library, because anyway you will see it soon if it broke eve...
Are memory leaks ever ok? [closed]
Is it ever acceptable to have a memory leak in your C or C++ application?
50 Answers
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What are some uses of decltype(auto)?
In c++14 the decltype(auto) idiom is introduced.
2 Answers
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fastest MD5 Implementation in JavaScript
...= "",
d = "",
c;
for (c = 0; 3 >= c; c++) d = a >>> 8 * c & 255, d = "0" + d.toString(16), b += d.substr(d.length - 2, 2);
return b
}
var f = [],
q, r, s, t, a, b, c, d;
e = function(a) {
a = a.replace(/\r\n...
Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
...or (because there are no move constructors or move assignment operators in C++03, this simplifies to "always" in C++03) (§12.8/8).
The copy assignment operator is auto-generated if there is no user-declared move constructor or move assignment operator (§12.8/19).
The destructor is auto-generated i...
What is the >>>= operator in C?
...@Kay: The hex float literals are part of C99, but GCC also accepts them in C++ code. As Dietrich notes, the p separates the mantissa and the exponent, just like the e in normal scientific float notation; one difference is that, with hex floats, the base of the exponential part is 2 instead of 10, so...
Sort points in clockwise order?
...;
}
}
This is faster, because the compiler (tested on Visual C++ 2015) doesn't generate jump to compute dax, day, dbx, dby. Here the output assembly from the compiler:
; 28 : const int dax = ((a.x() - center.x()) > 0) ? 1 : 0;
vmovss xmm2, DWORD PTR [ecx]
vmovss xmm...
Is there any advantage of using map over unordered_map in case of trivial keys?
A recent talk about unordered_map in C++ made me realize that I should use unordered_map for most cases where I used map before, because of the efficiency of lookup ( amortized O(1) vs. O(log n) ). Most times I use a map, I use either int or std::string as the key type; hence, I've got...
asynchronous vs non-blocking
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Module X: "I".
Module Y: "bookstore".
X asks Y: do you have a book named "c++ primer"?
blocking: before Y answers X, X keeps waiting there for the answer. Now X (one module) is blocking. X and Y are two threads or two processes or one thread or one process? we DON'T know.
non-blocking: before Y a...