Bit manipulation (since C23)
From cppreference.net
Functions |
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Defined in header
<stdbit.h>
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(C23)
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counts the number of consecutive
0
bits, starting from the most significant bit
(type-generic function macro) |
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(C23)
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counts the number of consecutive
1
bits, starting from the most significant bit
(type-generic function macro) |
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(C23)
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counts the number of consecutive
0
bits, starting from the least significant bit
(type-generic function macro) |
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(C23)
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counts the number of consecutive
1
bits, starting from the least significant bit
(type-generic function macro) |
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(C23)
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finds the first position of
0
bit, starting from the most significant bit
(type-generic function macro) |
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(C23)
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finds the first position of
1
bit, starting from the most significant bit
(type-generic function macro) |
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(C23)
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finds the first position of
0
bit, starting from the least significant bit
(type-generic function macro) |
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(C23)
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finds the first position of
1
bit, starting from the least significant bit
(type-generic function macro) |
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(C23)
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counts the number of
0
bits in an unsigned integer
(type-generic function macro) |
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(C23)
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counts the number of
1
bits in an unsigned integer
(type-generic function macro) |
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(C23)
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checks if a number is an integral power of
2
(type-generic function macro) |
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(C23)
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finds the smallest number of bits needed to represent the given value
(type-generic function macro) |
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(C23)
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finds the largest integral power of
2
not greater than the given value
(type-generic function macro) |
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(C23)
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finds the smallest integral power of
2
not less than the given value
(type-generic function macro) |
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Macro constants |
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Defined in header
<stdbit.h>
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indicates the endianness of scalar types
(macro constant) |
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References
- C23 standard (ISO/IEC 9899:2024):
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- 7.18 Bit and byte utilities <stdbit.h>
See also
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C++ documentation
for
Bit manipulation
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