Does "include" of C ++ do exactly what?
I know it "imports" a header / library.
But if I have a Header.h with:
#include <string>
using namespace std;
string a() {
return "PTSO";
}
and in Main.cpp:
#include <string>
#include "H...
I've come across this in several languages, especially C and C ++, but I've never understood what it is, how it's used, and why it exists. I discovered unintentionally that it also exists in C # and is an unsecured practice.
What are pointer...
I came across the following questions:
What is the difference between the expressions strcpy (s, t) e s = t ?
What is the difference between the expressions if (strcmp (s, t) < 0) e if (s < t) ?
I tried to compile...
Viewing these comments about using switch is in doubt as to how it works even and why it is different from if when only buying by equality of a single variable against a sequence of values. p>
How is this compiled?
Should it...
I need to make an algorithm that gets 3 different numbers, and if it receives repeated numbers, it informs an error message.
My program is all working properly, but when I put the line to warn of the error I try to use Or and it does n...
I'm developing a multi-platform API in C and need to know if there is any way to know which OS is being compiled.
For example, it could be a precompilation directive
#ifdef LINUX
#include<linuxlib.h>
#elif OSX
#include<osxlib.h>...
I know there are two ways to prevent a header file from being duplicated in C \ C ++:
#ifndef FOO_H_INCLUDED
#define FOO_H_INCLUDED
class Foo
{
// código
};
#endif
E
#pragma once
class Foo
{
// código
};
Being the first I...
I would like you to explain this function to me, I do not understand this syntax:
double sum_arithmetic(double x0, double r, int n)
{
return n == 0 ? 0 : x0 + sum_arithmetic(x0 + r, r, n-1);
}