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Go > operators
... power of 2) in other languages, but because Go is a safer language than C/C++ it does some extra work when the shift count is a number.
Shift instructions in x86 CPUs consider only 5 bits (6 bits on 64-bit x86 CPUs) of the shift count. In languages like C/C++, the shift operator translates into a ...
Declaring variables inside loops, good practice or bad practice?
...y information
The open-source tool CppCheck (a static analysis tool for C/C++ code) provides some excellent hints regarding optimal scope of variables.
In response to comment on allocation:
The above rule is true in C, but might not be for some C++ classes.
For standard types and structures, the ...
What is move semantics?
...oftware Engineering radio podcast interview with Scott Meyers regarding C++0x . Most of the new features made sense to me, and I am actually excited about C++0x now, with the exception of one. I still don't get move semantics ... What is it exactly?
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Why does volatile exist?
What does the volatile keyword do? In C++ what problem does it solve?
18 Answers
18
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How to write a large buffer into a binary file in C++, fast?
... setups:
Laptop, Core i7, SSD, Ubuntu 16.04, g++ Version 7.2.0 with -std=c++11 -march=native -O3
Desktop, Core i7, SSD, Windows 10, Visual Studio 2017 Version 15.3.1 with /Ox /Ob2 /Oi /Ot /GT /GL /Gy
Which gave the following measurements (after ditching the values for 1MB, because they were obvi...
2D cross-platform game engine for Android and iOS? [closed]
...pment, named as Marmalade Quick. Although the coding will be in Lua not in C++, but since it's built on top of C++ Marmalade, you can easily include a C++ library, and all other EDK extensions. Also the Cocos-2Dx and Box2D extensions are preincluded in the Quick. They recently launched it's Release ...
What's the best way to do a backwards loop in C/C#/C++?
...
In C++ you basicially have the choice between iterating using iterators, or indices.
Depending on whether you have a plain array, or a std::vector, you use different techniques.
Using std::vector
Using iterators
C++ allows ...
How do I iterate through table rows and cells in JavaScript?
...+])
{
var c=0; //start counting columns in row
while(cell=row.cells[c++])
{
cell.innerHTML='[R'+r+'C'+c+']'; // do sth with cell
}
}
<table id="mytab1">
<tr>
<td>A1</td><td>A2</td><td>A3</td>
</tr>
<tr>
...
Why can templates only be implemented in the header file?
Quote from The C++ standard library: a tutorial and handbook :
17 Answers
17
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Can't use modulus on doubles?
I have a program in C++ (compiled using g++). I'm trying to apply two doubles as operands to the modulus function, but I get the following error:
...