Introduction CT Number and Bit Manipulation

This module discusses number and bit manipulation. Specifically, the numeric section deals with conversions between two different number systems, and the creation of random numbers.

The bit manipulation section covers such required binary operations as AND, OR, XOR, and NOT, and how to test, set and clear bits. The NUMLOW() and NUMHIGH() functions are important for CA-Clipper Tools functions that take two 8-bit values and return them as combined 16-bit numbers. An example is the GETCURSOR() function from the Extended Drivers module.

Many of the functions in this module have a <value> parameter type. In this case, a number can be in the range of 0 to 65535 (or 4 294 967 295) and/or a hexadecimal string in the range of “0000” to “FFFF” (or “FFFFFFFF”).

CT Number and Bit Manipulation Functions