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Why can templates only be implemented in the header file?
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Templates need to be instantiated by the compiler before actually compiling them into object co...
How fast is D compared to C++?
...ms to be the best option for D compilation in terms of performance. On my x86_64 Arch Linux installation I used the following packages:
clang 3.6.0-3
ldc 1:0.15.1-4
dtools 2.067.0-2
I used the following commands to compile each:
C++: clang++ scalar.cpp -o"scalar.cpp.exe" -std=c++11 -O3
D: rdmd...
What is the difference between customErrors and httpErrors?
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86
Disclaimer: This is from my experience and not proven fact.
Both are used to define error handl...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
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General numeric sort compares the numbers as floats, this allows scientific notation eg 1.234E1...
Git Cherry-pick vs Merge Workflow
...ply that it would be easier to understand.
– nicolimo86
Oct 16 '18 at 9:29
Merging is the usual way to have a clean hi...
What are the differences between a pointer variable and a reference variable in C++?
...;
A pointer has its own memory address and size on the stack (4 bytes on x86), whereas a reference shares the same memory address (with the original variable) but also takes up some space on the stack. Since a reference has the same address as the original variable itself, it is safe to think of a...
Is gcc std::unordered_map implementation slow? If so - why?
...DDEPTH=100
elapsed: 6.76 inserts, elapsed: 2.03 get, -DDEPTH=10
elapsed: 2.86 inserts, elapsed: 2.29 get, -DDEPTH=1
My conclusion is that there is not much significant performance difference for any initial hash table size other than making it equal to the entire expected number of unique insertio...
How to build an android library with Android Studio and gradle?
...rsion 19
ndk {
abiFilters 'armeabi', 'armeabi-v7a', 'x86'
}
externalNativeBuild {
cmake {
cppFlags '-std=c++11'
arguments '-DANDROID_TOOLCHAIN=clang',
'-DANDROID_PLATFORM=android-19',
...
What does Docker add to lxc-tools (the userspace LXC tools)?
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FlimmFlimm
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Why are joins bad when considering scalability?
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HLGEMHLGEM
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