Difference in C logical operators

Question

I've come across the iso646.h which provides some of the nice logical keyword operators that I'm used to from python. Is one of the following approaches preferred over the other?

if (x>7 && y<-2)
    printf("Normal symbols
");

#include<iso646.h>
if (x > 7 and z < 4)
     printf("Iso646 is here
");

Is there ever a place where one form would be preferred over the other? Or is this like the bool type which is a nice way to replace doing int is_valid=1; ?

question from:https://stackoverflow.com/questions/65880179/difference-in-c-logical-operators

Answer 1

As a C developer, I would be puzzled if I see and instead of &&. Or should it be a single &? I would need to dig into the include files to be sure how that uncommon keyword is defined.

Indeed && is much more familiar than and in the context of a C program.