The comparison statement

Question

#include <iostream>
#include<string>
using namespace std;

int main() {
    int a=30,b=1, c=5, i=10;
    i=b<a<c;
    cout<<i<<endl;
    
    return 0;
}

Hello I have question about this code. when I run the code, I get the result which is 1, but I am not sure the relationship about i=b<a<c; and why I get the result

Thank you.

[I get 1](https://gcc.godbolt.org/z/fvKaqx) – chris Jan 08 '21 at 02:57 — chris, Jan 08 '21 at 02:57
What are you expecting ? What do you think this should do ? – John3136 Jan 08 '21 at 02:58 — John3136, Jan 08 '21 at 02:58

score 0 · Answer 1 · answered Jan 08 '21 at 03:20

int a=30,b=1, c=5, i=10; i=b<a<c;

i=b<a<c

is interpreted as:

compute (b<a)
compare the result to see if it is < c
place that result into the variable i

So this is what happens:

b<a is evaluated as 1<30, which is true, so the result is 1 .
next this 1 result is compared to c, which is evaluated as 1< 5, which is also true, so that result is also 1
this final 1 result is set as the value in the variable i.

The comparison statement

1 Answers1