Can any one explain why we got this kind of output and also say me when " float is true " and "double is false" gets printed ?

Question

#include<stdio.h>
int main()
{
float i =0.1;
double j =0.1;
if(i == 0.1)
puts("float is true\n");
else
puts("float is false\n");
if(j == 0.1)
puts("double is true\n");
else
puts("double is false\n");
return 0;
}
-------------
Output:
-------------
float is false
double is true

Answer 1

Floats and doubles are imprecise in computers, double less so than float.

I suppose the issue comes from there.

A few threads that discuss the matter (I suppose you can find many more):

https://www.sololearn.com/discuss/1855448/?ref=app
https://www.sololearn.com/discuss/1093191/?ref=app
https://www.sololearn.com/discuss/1733175/?ref=app
https://www.sololearn.com/discuss/1606645/?ref=app
https://www.sololearn.com/discuss/1159244/?ref=app
https://www.sololearn.com/discuss/796595/?ref=app