Lambda Expressions allow users to write an inline expression that can be used for short snippets of code in your C++ app which are not going to be reused and don’t require naming. The Lambda Expression construct is introduced in C++ 11 and further developed in the C++14, C++17, and C++20 standards. In C++14, lambda expressions are improved by the generalized lambda (generic lambda) or…
In a modern C++ IDE, one of the features of its modern is the copy assignment operator that is used with “operator=” to create a new object from an existing one. In this post, we explain an eligible copy assignment operator in C++.
What are classes and objects…
C++ is a very decent programming language that has a very strong compiler supported by a big community on a range of different platforms. The C++ language definitions, syntax, and functionality are organized into different standards. Those standards are usually named after…
C++ is a well-established programming language that is supported by a big community for many different computing hardware platforms. The language has a set of standards generally named after the approximate year the standard was adopted, such as C++98, C++11, C++14, C++17, and so on. Basically, these standards are an international agreement for C++ compiler technology. If you are using a feature…
The C++11 standard introduced alignment support as one of the many features of the C++ programming language that can be used with the latest C++ compilers today. One of the new features of this support was a new keyword align std::aligned_union that is used to provide a…
The source code written in C++ must be compiled (i.e. translated to the machine code) by one or another compiler such as Embarcadero RAD Studio C++ compilers before in can be runned. In general, there are two types of the resulting machine code: library and main executable…
The posts General Loop Statements in Modern C++ and Range-for-statement in modern C++ cover ways to write explicit loops. But explicit loops can be tedious to write and, what is more important, – harder to read, because the resulting code requires to spend the extra time by others in order to understand what is going on in the explicit loop. As alternative, the C++ standard library provides…
Each loop statement in C++ has its loop body which is executed repeatedly until the loop condition expression that yields a loop condition becomes false (otherwise, the loop will run “forever”). The statement continue can be used to interrupt the current…
The C++ language provides the switch statement which can be used to replace the set of if statements (see If Statements in Modern C++). First of all, let’s define the enum type Traffic_light_color as follows:
enum class Traffic_light_color { red, yellow, green…
Every implementation of the C++ Standard Library like one included to Embarcadero RAD Studio C++ compilers provides two ways for (pseudo-)random numbers generation: old-fashioned facilities from <cstdlib> and modern facilities provided by <random>.
Facilities from <cstdlib>
There are two very simple functions provided by the C random library: std::srand() and std::rand().
