Creates a bit mask based on a single bit-number position.
Files
lib_def.h
Prototypes
Arguments
bit
Bit number of the bit mask to set.
Returned Value
Bit mask with the single bit number position set.
Required Configuration
None.
Notes / Warnings
bit should be a non-negative integer.
bit values that overflow the target CPU and/or compiler environment (e.g. negative or greater-than-CPU-data-size values) may generate compiler warnings and/or errors.
To avoid overflowing any target CPU and/or compiler’s integer data type, unsigned bit constant 1 is either cast to specified integer data type size or suffixed with long integer modifier, ‘L’. This may still be insufficient for CPUs and/or compilers that support long long integer data types, in which case ‘LL’ integer modifier should be suffixed. However, since almost all 16- and 32-bit CPUs and compilers support long integer data types but many may not support long long integer data types, only long integer data types and modifiers are supported.