SET(9) | Kernel Developer's Manual | SET(9)

# NAME

`SET` —
primitive bit macros

# SYNOPSIS

`#include <sys/types.h>`

void
`SET`(val, x);

int
`ISSET`(val, x);

void
`CLR`(val, x);

# DESCRIPTION

These macros define three standard bit operations:

1. `SET`() sets the set bits from x in val;
2. `CLR`() clears the set bits from x in val; and
3. `ISSET`() returns true if any of the set bits from x are set in val.

# SEE ALSO

bits(3)

# BUGS

The rationale is to provide clarity in the source code, but arguably these operations are clear enough without the use of the macros.

December 13, 2015 | NetBSD 9.3