Return a mask with only the bit at index set.

Synopsis

Declared in <bdlb_bitmaskutil.h>

static
uint64_t
eq64(int index);

Description

Return the unsigned integral value having the bit at the specified index position set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result.

Return Value

mask with only the bit at index set

Parameters

Name

Description

index

bit position to set

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