Difference between revisions of "cpp/numeric/bit ceil"
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m (T. Canens moved page cpp/numeric/ceil2 to cpp/numeric/bit ceil: Text replace - "(ceil|floor)2" to "bit_$1") |
m (Text replace - "(ceil|floor)2" to "bit_$1") |
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| − | {{cpp/title| | + | {{cpp/title|bit_ceil}} |
{{cpp/numeric/navbar}} | {{cpp/numeric/navbar}} | ||
{{ddcl|since=c++20|header=bit| | {{ddcl|since=c++20|header=bit| | ||
template< class T > | template< class T > | ||
| − | constexpr T | + | constexpr T bit_ceil(T x); |
}} | }} | ||
Revision as of 05:02, 21 February 2020
| Defined in header <bit>
|
||
| template< class T > constexpr T bit_ceil(T x); |
(since C++20) | |
Calculates the smallest integral power of two that is not smaller than x. If that value is not representable in T, the behavior is undefined.
This function is constexpr only if the result is representable in T.
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).
Contents |
Parameters
| x | - | values of unsigned integer type |
Return value
The smallest integral power of two that is not smaller than x.
Exceptions
(none)
Example
| This section is incomplete Reason: no example |
