This utility struct provides a namespace for a set of bit-level, stateless functions that take one or two int arguments and return masks of the built-in 32- and 64-bit integer types uint32_t and uint64_t, respectively.
Declared in <bdlb_bitmaskutil.h>
struct BitMaskUtil;| Name | Description |
|---|---|
Unnamed enum | Number of bits in type uint32_t. |
| Name | Description |
|---|---|
eq | 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. |
eq64 | 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. |
ge | Return the unsigned integral value having all bits at positions greater than or equal to the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
ge64 | Return the unsigned integral value having all bits at positions greater than or equal to the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
gt | Return the unsigned integral value having all bits at positions greater than the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
gt64 | Return the unsigned integral value having all bits at positions greater than the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
le | Return the unsigned integral value having all bits at positions less than or equal to the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
le64 | Return the unsigned integral value having all bits at positions less than or equal to the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
lt | Return the unsigned integral value having all bits at positions less than the specified index set to 1, and all other bits set to 0. |
lt64 | Return the unsigned integral value having all bits at positions less than the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index <= # of bits in result. |
ne | Return a bitmask with the bit at index cleared. |
ne64 | Return the unsigned integral value having the bit at the specified index position set to 0, and all other bits set to 1. The behavior is undefined unless 0 <= index <= # of bits in result. |
one | Return the unsigned integral value having the specified numBits starting at the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index, 0 <= numBits, and index + numBits <= # of bits in result. |
one64 | Return the unsigned integral value having the specified numBits starting at the specified index set to 1, and all other bits set to 0. The behavior is undefined unless 0 <= index, 0 <= numBits, and index + numBits <= # of bits in result. |
zero | Return the unsigned integral value having the specified numBits starting at the specified index set to 0, and all other bits set to 1. |
zero64 | Return the unsigned integral value having the specified numBits starting at the specified index set to 0, and all other bits set to 1. The behavior is undefined unless 0 <= index, 0 <= numBits, and index + numBits <= # of bits in result. |