__builtin_cmprb
Purpose
Compares the ranged byte.
This built-in function is valid only when -qarch(-mcpu) is set to utilize the POWER9™ technology.
Prototype
int __builtin_cmprb(const int a, int b, int c)
Usage
- If a is 0, the result is set by the following rules:
- If the rightmost byte of b is in the range from the rightmost byte of c to the second rightmost bytes of c, the result is 1.
- Otherwise, the result is 0.
- If a is 1, the result is set by the following rules:
- If the rightmost byte of b is in the range from the rightmost byte to the second rightmost byte of either halfword of c, the result is 1.
- Otherwise, the result is 0.
Notes:
- a can only be 0 or 1.
- The rightmost byte is the low bound of the range and second rightmost byte is the high bound of the range.
