Difference between revisions of "cpp/numeric/bit floor"
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m (T. Canens moved page cpp/numeric/floor2 to cpp/numeric/bit floor: Text replace - "(ceil|floor)2" to "bit_$1") |
m (Text replace - "(ceil|floor)2" to "bit_$1") |
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{{ddcl|since=c++20|header=bit| | {{ddcl|since=c++20|header=bit| | ||
template< class T > | template< class T > | ||
| − | constexpr T | + | constexpr T bit_floor(T x) noexcept; |
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Revision as of 05:02, 21 February 2020
| Defined in header <bit>
|
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| template< class T > constexpr T bit_floor(T x) noexcept; |
(since C++20) | |
If x is not zero, calculates the largest integral power of two that is not greater than x. If x is zero, returns zero.
This overload participates in overload resolution only if T is an unsigned integer type (that is, unsigned char, unsigned short, unsigned int, unsigned long, unsigned long long, or an extended unsigned integer type).
Return value
Zero if x is zero; otherwise, the largest integral power of two that is not greater than x.
Example
| This section is incomplete Reason: no example |
