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Move is_pow2 to headers for template generation

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This commit is contained in:
Danny Robson 2012-07-30 16:31:19 +10:00
parent 419c1d48f6
commit 983b96c958
2 changed files with 12 additions and 11 deletions
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18
maths.cpp
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@ -25,15 +25,7 @@
#include <type_traits> #include <type_traits>
template <typename T> //-----------------------------------------------------------------------------
T
pow2 (T value)
{ return value * value; }
template double pow2(double);
template int pow2( int);
template <typename T> template <typename T>
bool bool
is_pow2 (T value) { is_pow2 (T value) {
@ -41,21 +33,25 @@ is_pow2 (T value) {
return (return_type)(value && !(value & (value - 1))); return (return_type)(value && !(value & (value - 1)));
} }
template bool is_pow2 (uint8_t); template bool is_pow2 (uint8_t);
template bool is_pow2 (uint16_t); template bool is_pow2 (uint16_t);
template bool is_pow2 (uint32_t); template bool is_pow2 (uint32_t);
template bool is_pow2 (uint64_t); template bool is_pow2 (uint64_t);
//-----------------------------------------------------------------------------
template <typename T> template <typename T>
double double
rootsquare (T a, T b) rootsquare (T a, T b)
{ return sqrt (pow2 (a) + pow2 (b)); } { return sqrt (pow2 (a) + pow2 (b)); }
template double rootsquare (double, double); template double rootsquare (double, double);
template double rootsquare ( int, int); template double rootsquare ( int, int);
//-----------------------------------------------------------------------------
template <typename T> template <typename T>
bool bool
is_integer (const T &value) { is_integer (const T &value) {
@ -64,6 +60,7 @@ is_integer (const T &value) {
static_cast<T> (0.0)); static_cast<T> (0.0));
} }
template bool is_integer (const double&); template bool is_integer (const double&);
template bool is_integer (const float&); template bool is_integer (const float&);
@ -80,6 +77,7 @@ almost_equal (const double &a, const double &b)
{ return ieee_double::almost_equal (a, b); } { return ieee_double::almost_equal (a, b); }
//-----------------------------------------------------------------------------
template <typename T> template <typename T>
typename std::enable_if<std::is_integral<T>::value, T>::type typename std::enable_if<std::is_integral<T>::value, T>::type
round_up (T value, T align) { round_up (T value, T align) {
@ -88,6 +86,7 @@ round_up (T value, T align) {
} }
//-----------------------------------------------------------------------------
template <typename T> template <typename T>
T T
round_pow2 (T value) { round_pow2 (T value) {
@ -110,6 +109,7 @@ template uint32_t round_pow2 (uint32_t);
template uint64_t round_pow2 (uint64_t); template uint64_t round_pow2 (uint64_t);
//-----------------------------------------------------------------------------
template <typename T> template <typename T>
int int
sign (T val) { sign (T val) {

5
maths.hpp
View File

@ -25,8 +25,9 @@
#include <type_traits> #include <type_traits>
template <typename T> template <typename T>
T constexpr T
pow2 (T value) pure; pow2 (T value)
{ return value * value; }
template <typename T> template <typename T>