<                        Less than operator

 exp1  <  exp2           Test for exp1 less than exp2
 exp1, exp2              any expression of type int, float, char, enum, or
                         related types

    < is a relational  operator, yielding a value  of TRUE if exp1  is less
    than  exp2;  or  FALSE  if  exp1  is  not  less  than exp2.  For string
    operands, the strings are compared according to the collating sequence.

           if ( number < guess )
               ...
           do  {
               ...
           } while ( tries < 10 );

>                        Greater Than operator

 exp1 > exp2             Test for exp1 greater than exp2
 exp1, exp2              any expression of type int, float, char, enum, or
                         related types

    > is a relational operator, yielding a value of TRUE if exp1 is greater
    than exp2;  or FALSE,  if exp1  is not  greater than  exp2.  For string
    operands, the strings are compared according to the collating sequence.

           if ( number > guess )
               ...

<=                       Less Than or Equal to operator

 exp1 <= exp2            Test for exp1 less than or equal to exp2
 exp1, exp2              any expression of type int, float, char, enum, or
                         related types

    <= is a relational operator, yielding  a value of TRUE if exp1  is less
    than or equal to exp2, and  FALSE otherwise.  For string operands,  the
    strings are compared according to the collating sequence.

           if ( number <= guess )
               ...
           do  {
               ...
           } while ( tries <= 9 );

>=                       Greater Than or Equal To

 exp1 >= exp2            Test for exp1 greater than or equal to exp2
 exp1, exp2              any expression of type int, float, char, enum, or
                         related types

    >= is a relational operator, yielding  a value of TRUE exp1 is  greater
    than or equal to exp2, and  FALSE otherwise.  For string operands,  the
    strings are compared according to the collating sequence.

           if ( number >= guess )
               ...