Confusing if else

Question

#include"stdio.h"

int main()
{

float a=0.7d;

if(a<0.7)

printf("C");

else

printf("C++");

return 0;
}

Ans is c
But why
Please explain in detail

Answer 1

Because floating point numbers has certain accuracy of representation.
So in fact a is represented as 0.6999...... That's why a < 0.7 and "C" is printed. Look at the code and the actual value of variable "a". Hope it helps you 😉
https://code.sololearn.com/c0IdhHFKo9A5/?ref=app

Answer 2

Siddharth Jain, just double type variables have better accuracy and that's why it'll print "C++".

Answer 3

Siddharth Jain , you are welcome 👍

Answer 4

Siddharth Jain , in fact if you change the type of variable "a" to double you'll get a better accuracy and then it'll print "C++" on screen.

Answer 5

thanks 😋 TheWh¡teCat

Answer 6

while comparision is a implicitly type casted to double ? TheWh¡teCat