ISO/IEC 9899:1999, 6.5.8, p6 has this to say:
"Each of the operators < (less than), > (greater than), <= (less than or equal to), and >= (greater than or equal to) shall yield 1 if the specified relation is true and 0 if it is false. The result has type int."
ISO/IEC 9899:1999, 6.5.8, p6 has this to say:
"Each of the operators < (less than), > (greater than), <= (less than or equal to), and >= (greater than or equal to) shall yield 1 if the specified relation is true and 0 if it is false. The result has type int."