diff options
-rw-r--r-- | src/conditional/if.h | 21 | ||||
-rw-r--r-- | test.cc | 6 |
2 files changed, 27 insertions, 0 deletions
diff --git a/src/conditional/if.h b/src/conditional/if.h new file mode 100644 index 0000000..29aa6f0 --- /dev/null +++ b/src/conditional/if.h @@ -0,0 +1,21 @@ +#ifndef TYPEASVALUE_SRC_CONDITIONAL_IF_H_ +#define TYPEASVALUE_SRC_CONDITIONAL_IF_H_ + +#include <type_traits> + +namespace tav { + +template < + bool Condition, + typename IfBranch, + typename ElseBranch +> +using If = typename std::conditional< + Condition, + IfBranch, + ElseBranch +>::type; + +} + +#endif // TYPEASVALUE_SRC_CONDITIONAL_IF_H_ @@ -2,6 +2,7 @@ #include "type.h" #include "operation/math.h" +#include "conditional/if.h" class TypeAsValueTest : public ::testing::Test { }; @@ -16,6 +17,11 @@ TEST_F(TypeAsValueTest, BasicMath) { EXPECT_EQ(5, ( tav::divide<tav::Int<10>, tav::Int<2>>::value )); } +TEST_F(TypeAsValueTest, Conditional) { + EXPECT_EQ(1, ( tav::If<true, tav::Int<1>, tav::Int<2>>::value )); + EXPECT_EQ(2, ( tav::If<false, tav::Int<1>, tav::Int<2>>::value )); +} + int main(int argc, char **argv) { testing::InitGoogleTest(&argc, argv); |