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Add test for multiple symbols

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This commit is contained in:
Gael Guennebaud 2017-01-24 16:27:51 +01:00
parent c43d254d13
commit bc10201854
2 changed files with 11 additions and 1 deletions
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2
Eigen/src/Core/util/SymbolicIndex.h
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@ -235,7 +235,7 @@ public:
Index eval_impl(const SymbolValue<Tag> &values) const { return values.value(); }
#if __cplusplus > 201103L
#if EIGEN_HAS_CXX14
// C++14 versions suitable for multiple symbols
template<typename... Types>
Index eval_impl(const std::tuple<Types...>& values) const { return std::get<SymbolValue<Tag> >(values).value(); }

10
test/symbolic_index.cpp
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@ -85,6 +85,16 @@ void check_symbolic_index()
VERIFY_IS_EQUAL( ( -last*end ).eval(last=size-1), -(size-1)*size );
VERIFY_IS_EQUAL( ( end-3*last ).eval(last=size-1), size- 3*(size-1) );
VERIFY_IS_EQUAL( ( (end-3*last)/end ).eval(last=size-1), (size- 3*(size-1))/size );
#if EIGEN_HAS_CXX14
{
struct x_tag {}; static const Symbolic::SymbolExpr<x_tag> x;
struct y_tag {}; static const Symbolic::SymbolExpr<y_tag> y;
struct z_tag {}; static const Symbolic::SymbolExpr<z_tag> z;
VERIFY_IS_APPROX( int(((x+3)/y+z).eval(x=6,y=3,z=-13)), (6+3)/3+(-13) );
}
#endif
}
void test_symbolic_index()