Does 0 = '0' in C++?

Question

int x = 0;
if (x == '0')
cout << x;
cout << x+1; // is this line essentially using an else statement?

// outputs 1

I might be overthinking, but do the single quotes make the 'if' condition false?

Also, under what circumstances are curly brackets not needed?

Answer 1

No 0 != '0'. Moreover, in this case an int is being compared with a char, so it's okay becuase char is internally stored as integer. But if you compared 0 with for example, string or a custom type, it would give error.

The curly braces are not needed in a if, else if, else , while or a for block, if the block has only 1 statement. For example, in the above code, the if block has only 1 statement "cout << x"