CPP

c++ if else

if (5 == 4) {
  //code you want to run if the condition is true
} else {
  // code you want to run if the condition is false
}

if statement C++

if (condition)
{
	// block of code
}
else if (condition)
{
	// block of code
}
else {
	// block of code
}

cpp ifdef

//INCLUDING BUILT-IN LIBRARIES...
#include <iostream>
#include <stdlib.h>
//PRE-DEFINE CONSTANT VALUES...
#define MAXNUM -12    //defining an integer
#define PI 3.1415     //defining a float
#define END "

		Program has ended!!
"   //defining a string
//PRE-DEFINING CONSTANT OPERATIONS...
#define ADD(a, b, c) (a + b + c)    //Operation that will add its 3 parameters

using namespace std;

int main(){
    //using other definitions to check if the current device is Windows or UNIX
    #ifdef _WIN32  
        cout<<"Windows Operating System Detected"<<endl;
    #elif __unix__
        cout<<"UNIX Operating System Detected"<<endl;
    #else
        cout<<"Operating System could NOT be identified!"<<endl;
    #endif
    
    cout<<endl<<"Using pre-defined values and operations: "<<endl;
    cout<<" • MAXNUM: "<<MAXNUM<<endl;       //using pre-defined integer
    cout<<" • PI: "<<PI<<endl;               //using pre-defined float
    cout<<" • ADD(): "<<ADD(2,5,99.5)<<endl;   //using pre-defined function

    cout<<END;    //using pre-defined string
    return 0;
}

if c++

if (condition) {
  // block of code to be executed if the condition is true
}

C++ Else If

int time = 22;
if (time < 10) {
  cout << "Good morning.";
} else if (time < 20) {
  cout << "Good day.";
} else {
  cout << "Good evening.";
}
// Outputs "Good evening."

iff cpp

bool state = (value > 0) ? true : false;

C++ if Statement

if (condition) {
  // body of if statement
}

c++ if

if(condition) 
{
   // Statements to execute if
   // condition is true
}

c++ if else

if (condition)
{
    // Executes this block if
    // condition is true
}
else
{
    // Executes this block if
    // condition is false
}

if c++

int x = 20;
int y = 18;
if (x > y) {
  cout << "x is greater than y";
}

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.
}

if statement in c++

int time = 20;
string result = (time < 18) ? "Good day." : "Good evening.";
cout << result;