Thread: integer promotions

I came across the foll code in c99 standard:

Otherwise, if the type of the operand with signed integer type can represent
all of the values of the type of the operand with unsigned integer type, then
the operand with unsigned integer type is converted to the type of the
operand with signed integer type.

Can someone please give an example for this?

Originally Posted by laserlight

Suppose x is an unsigned int and y is a long. Suppose also that UINT_MAX is 65535 and LONG_MAX is 2147483647. Therefore, if we look at the expression (x + y), we see that "the type of the operand with signed integer type can represent all of the values of the type of the operand with unsigned integer type", hence x is converted to long.

Thank you...you rockkkkk!!