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Make math.nbtheory.ln to a template function

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This commit is contained in:
Eugen Wissner
2018-02-24 14:02:18 +01:00
parent 84d6e207c5
commit 464a0fecbb
2 changed files with 32 additions and 39 deletions
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53
source/tanya/math/nbtheory.d
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@ -30,15 +30,15 @@ else
* Calculates the absolute value of a number.
*
* Params:
* I = Value type.
* x = Value.
* T = Argument type.
* x = Argument.
*
* Returns: Absolute value of $(D_PARAM x).
*/
I abs(I)(I x)
if (isIntegral!I)
T abs(T)(T x)
if (isIntegral!T)
{
static if (isSigned!I)
static if (isSigned!T)
{
return x >= 0 ? x : -x;
}
@ -49,7 +49,7 @@ if (isIntegral!I)
}
///
pure nothrow @safe @nogc unittest
@nogc nothrow pure @safe unittest
{
int i = -1;
assert(i.abs == 1);
@ -63,25 +63,25 @@ pure nothrow @safe @nogc unittest
version (D_Ddoc)
{
/// ditto
I abs(I)(I x)
if (isFloatingPoint!I);
T abs(T)(T x)
if (isFloatingPoint!T);
}
else version (TanyaNative)
{
extern I abs(I)(I number) pure nothrow @safe @nogc
if (isFloatingPoint!I);
extern T abs(T)(T number) @nogc nothrow pure @safe
if (isFloatingPoint!T);
}
else
{
I abs(I)(I x)
if (isFloatingPoint!I)
T abs(T)(T x)
if (isFloatingPoint!T)
{
return fabs(cast(real) x);
}
}
///
pure nothrow @safe @nogc unittest
@nogc nothrow pure @safe unittest
{
float f = -1.64;
assert(f.abs == 1.64F);
@ -97,7 +97,7 @@ pure nothrow @safe @nogc unittest
}
/// ditto
I abs(I : Integer)(const auto ref I x)
T abs(T : Integer)(const auto ref T x)
{
auto result = Integer(x, x.allocator);
result.sign = Sign.positive;
@ -105,7 +105,7 @@ I abs(I : Integer)(const auto ref I x)
}
/// ditto
I abs(I : Integer)(I x)
T abs(T : Integer)(T x)
{
x.sign = Sign.positive;
return x;
@ -117,37 +117,30 @@ version (D_Ddoc)
* Calculates natural logarithm of $(D_PARAM x).
*
* Params:
* T = Argument type.
* x = Argument.
*
* Returns: Natural logarithm of $(D_PARAM x).
*/
float ln(float x) pure nothrow @safe @nogc;
/// ditto
double ln(double x) pure nothrow @safe @nogc;
/// ditto
real ln(real x) pure nothrow @safe @nogc;
T ln(T)(T x)
if (isFloatingPoint!T);
}
else version (TanyaNative)
{
extern float ln(float x) pure nothrow @safe @nogc;
extern double ln(double x) pure nothrow @safe @nogc;
extern real ln(real x) pure nothrow @safe @nogc;
extern T ln(T)(T x) @nogc nothrow pure @safe
if (isFloatingPoint!T);
}
else
{
float ln(float x) pure nothrow @safe @nogc
T ln(T)(T x)
if (isFloatingPoint!T)
{
return log(x);
}
double ln(double x) pure nothrow @safe @nogc
{
return log(x);
}
alias ln = log;
}
///
pure nothrow @safe @nogc unittest
@nogc nothrow pure @safe unittest
{
import tanya.math;