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Do I cast the result of malloc?
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edited Sep 3 '19 at 11:12
answered Mar 3 '09 at 10:17
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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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Reshaping data.frame from wide to long format
...nia 1952 10,058
7: AFG Afghanistan 1953 23,557
8: ALB Albania 1953 11,123
9: AFG Afghanistan 1954 24,555
10: ALB Albania 1954 12,246
Some alternative notations:
melt(setDT(wide), id.vars = 1:2, variable.name = "year")
melt(setDT(wide), measure.vars = 3:7, variable.name = "year")
m...
Designer Added then removed by Visual Studio on load/unload
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answered Nov 8 '11 at 18:19
Nathan ReedNathan Reed
2,58111 gold badge1818 silver badges2727 bronze badges
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How to drop column with constraint?
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Dzianis Yafimau
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answered Dec 27 '11 at 7:03
Oleg DokOleg Dok
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“#include” a text file in a C program as a char[]
...SL shaders.
– linello
Jan 18 '16 at 11:11
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Another way to add 0x00 termination to xxd produced C...
Evaluate empty or null JSTL c tags
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Community♦
111 silver badge
answered May 11 '10 at 14:47
BalusCBalusC
953k341341 gold bad...
round() for float in C++
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It's available since C++11 in cmath (according to http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf)
#include <cmath>
#include <iostream>
int main(int argc, char** argv) {
std::cout << "round(0.5):\t" << r...
JavaScript style for optional callbacks
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answered Jul 22 '11 at 15:58
RaynosRaynos
152k5252 gold badges336336 silver badges384384 bronze badges
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Efficient way to return a std::vector in c++
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In C++11, this is the preferred way:
std::vector<X> f();
That is, return by value.
With C++11, std::vector has move-semantics, which means the local vector declared in your function will be moved on return and in some ca...