Answers for "c++ if syntax"

c++ if in equivalent

#include <algorithm>
#include <vector>

if ( std::find(vec.begin(), vec.end(), item) != vec.end() )
   do_this();
else
   do_that();

elseif c++

if( a == 10 ) {
      cout << "Value of a is 10" << endl;
   } else if( a == 20 ) {
      // if else if condition is true
      cout << "Value of a is 20" << endl;
   }

if else in C++

//1
if(condition) {
   statement(s);
}
else {
   statement(s);
}
//2
(condition) ? (true_statement) : (false_statement)

C++ if and

//C++

int a = 1;
int b = 2;

if (a == 1){
	std::cout << "a equals 1!";
}

if (b == 2){
	std::cout << "b equals 2!";
}

if (a == 1 && b == 2){
	std::cout << "a equals 1, and b equals 2!"
}

C++ if else

#include<iostream>
using namespace std;

int main()
{
    int grade;

    cin >> grade;

    if( grade >= 60 )
    {
        cout << "You Pass!" << endl;
    }
    else
    {
        cout << "You Fail..." << endl;
    }

    return 0;
}

c++ if else if

if(boolean_expression 1) {
   // Executes when the boolean expression 1 is true
} else if( boolean_expression 2) {
   // Executes when the boolean expression 2 is true
} else if( boolean_expression 3) {
   // Executes when the boolean expression 3 is true
} else {
   // executes when the none of the above condition is true.
}