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PsL Monthly 1993 December
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PSL Monthly Shareware CD-ROM (December 1993).iso
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BITOPS.C
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C/C++ Source or Header
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1991-09-06
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333 b
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14 lines
/*
** Bit set, clear, and test operations
**
** public domain snippet by Bob Stout
*/
typedef enum {ERROR = -1, FALSE, TRUE} LOGICAL;
#define BOOL(x) (!(!(x)))
#define BitSet(arg,posn) ((arg) | (1L << (posn)))
#define BitClr(arg,posn) ((arg) & ~(1L << (posn)))
#define BitTst(arg,posn) BOOL((arg) & (1L << (posn)))