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bitwise: add popcount overloads for short and char

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Danny Robson 2019-09-11 07:41:09 +10:00
parent 5106038734
commit 2258279518
1 changed files with 18 additions and 0 deletions
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18
bitwise.hpp
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@ -83,6 +83,24 @@ namespace cruft {
/////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////
/// Calculates the number of bits that are set. /// Calculates the number of bits that are set.
constexpr unsigned constexpr unsigned
popcount (unsigned char t)
{
return __builtin_popcount (t);
}
///------------------------------------------------------------------------
/// Calculates the number of bits that are set.
constexpr unsigned
popcount (unsigned short t)
{
return __builtin_popcount (t);
}
///------------------------------------------------------------------------
/// Calculates the number of bits that are set.
constexpr unsigned
popcount (unsigned t) popcount (unsigned t)
{ {
return __builtin_popcount (t); return __builtin_popcount (t);