Expressions

• All binary and ternary operators MUST be padded on the left and right by one space, including assignment operators.
• Prefix and suffix operators MUST NOT be padded, neither on the left nor on the right.
• When necessary, padding is done with a single whitespace.
• The . and -> operators MUST NOT be padded, neither.

  This is wrong: x+=10*++x; y=a?b:c;

  This is correct:

            
  
              x += 10 * ++x;
              y = a ? b : c;
            
            

  
  
• There MUST NOT be any whitespace between the function and the opening parenthesis for arguments in function calls.
• "Functional" keywords MUST be followed by a whitespace, and their argument(s) MUST be enclosed between parenthesis. Especially note that sizeof is a keyword, while exit is not.

  This is wrong: p1 = malloc (3 * sizeof(int)); p2 = malloc(2 * sizeof char);

  This is correct:

            
  
            p = malloc(3 * sizeof (int));
            
            

  
  
• Expressions MAY span over multiple lines. When a line break occurs within an expression, it MUST appear just after a binary operator, in which case the binary operator MUST NOT be padded on the right by a whitespace.