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IEEE754Converter::enforceIeee<>()

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This commit is contained in:
Pavel Kirienko
2015-08-21 15:00:50 +03:00
parent 9c185b3ddf
commit aeb8beadc1
1 changed files with 12 additions and 0 deletions
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libuavcan/include/uavcan/marshal/float_spec.hpp
+12
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@@ -43,6 +43,16 @@ class UAVCAN_EXPORT IEEE754Converter
IEEE754Converter(); IEEE754Converter();
template <unsigned BitLen>
static void enforceIeee()
{
/*
* Some compilers may have is_iec559 to be defined false despite the fact that IEEE754 is supported.
* An acceptable workaround would be to put an #ifdef here.
*/
StaticAssert<std::numeric_limits<typename NativeFloatSelector<BitLen>::Type>::is_iec559>::check();
}
public: public:
#if UAVCAN_CPP_VERSION >= UAVCAN_CPP11 #if UAVCAN_CPP_VERSION >= UAVCAN_CPP11
/// UAVCAN requires rounding to nearest for all float conversions /// UAVCAN requires rounding to nearest for all float conversions
@@ -53,6 +63,7 @@ public:
static typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType static typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType
toIeee(typename NativeFloatSelector<BitLen>::Type value) toIeee(typename NativeFloatSelector<BitLen>::Type value)
{ {
enforceIeee<BitLen>();
union union
{ {
typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType i; typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType i;
@@ -67,6 +78,7 @@ public:
static typename NativeFloatSelector<BitLen>::Type static typename NativeFloatSelector<BitLen>::Type
toNative(typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType value) toNative(typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType value)
{ {
enforceIeee<BitLen>();
union union
{ {
typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType i; typename IntegerSpec<BitLen, SignednessUnsigned, CastModeTruncate>::StorageType i;