diff options
Diffstat (limited to 'libphobos/src/std/numeric.d')
| -rw-r--r-- | libphobos/src/std/numeric.d | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/libphobos/src/std/numeric.d b/libphobos/src/std/numeric.d index 3fef8e4..9966b1c 100644 --- a/libphobos/src/std/numeric.d +++ b/libphobos/src/std/numeric.d @@ -223,7 +223,7 @@ private: } // Convert the current value to signed exponent, normalized form - void toNormalized(T,U)(ref T sig, ref U exp) + void toNormalized(T,U)(ref T sig, ref U exp) const { sig = significand; auto shift = (T.sizeof*8) - precision; @@ -490,7 +490,7 @@ public: } /// Returns: real part - @property CustomFloat re() { return this; } + @property CustomFloat re() const { return this; } /// Returns: imaginary part static @property CustomFloat im() { return CustomFloat(0.0f); } @@ -546,7 +546,7 @@ public: } /// Fetches the stored value either as a `float`, `double` or `real`. - @property F get(F)() + @property F get(F)() const if (staticIndexOf!(immutable F, immutable float, immutable double, immutable real) >= 0) { import std.conv : text; @@ -591,14 +591,14 @@ public: // Define an opBinary `CustomFloat op CustomFloat` so that those below // do not match equally, which is disallowed by the spec: // https://dlang.org/spec/operatoroverloading.html#binary - real opBinary(string op,T)(T b) + real opBinary(string op,T)(T b) const if (__traits(compiles, mixin(`get!real`~op~`b.get!real`))) { return mixin(`get!real`~op~`b.get!real`); } /// ditto - real opBinary(string op,T)(T b) + real opBinary(string op,T)(T b) const if ( __traits(compiles, mixin(`get!real`~op~`b`)) && !__traits(compiles, mixin(`get!real`~op~`b.get!real`))) { @@ -606,7 +606,7 @@ public: } /// ditto - real opBinaryRight(string op,T)(T a) + real opBinaryRight(string op,T)(T a) const if ( __traits(compiles, mixin(`a`~op~`get!real`)) && !__traits(compiles, mixin(`get!real`~op~`b`)) && !__traits(compiles, mixin(`get!real`~op~`b.get!real`))) @@ -615,7 +615,7 @@ public: } /// ditto - int opCmp(T)(auto ref T b) + int opCmp(T)(auto ref T b) const if (__traits(compiles, cast(real) b)) { auto x = get!real; @@ -949,6 +949,17 @@ public: assertThrown!AssertError(a = float.infinity); } +@safe unittest +{ + const CustomFloat!16 x = CustomFloat!16(3); + assert(x.get!float == 3); + assert(x.re.get!float == 3); + assert(x + x == 6); + assert(x + 1 == 4); + assert(2 + x == 5); + assert(x < 4); +} + private bool isCorrectCustomFloat(uint precision, uint exponentWidth, CustomFloatFlags flags) @safe pure nothrow @nogc { // Restrictions from bitfield |