Adding a ranges verfication function to see if all elements are the s…

…ame value
njoy · Aug 7, 2024 · 9c49ddc · 9c49ddc
1 parent cb4aed8
commit 9c49ddc
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Showing 2 changed files with 15 additions and 0 deletions.
diff --git a/src/scion/verification/ranges.hpp b/src/scion/verification/ranges.hpp
@@ -64,6 +64,17 @@ bool isUnique( const Range& range ) {
   return range.end() == std::adjacent_find( range.begin(), range.end() );
 }
 
+/** @brief Verify if a range consists of the same element
+ *
+ *  @param[in] range    the range
+ */
+template < typename Range >
+bool isAllSameElement( const Range& range ) {
+
+  return range.end() == std::adjacent_find( range.begin(), range.end(),
+                                            std::not_equal_to{} );
+}
+
 } // math namespace
 } // scion namespace
 } // njoy namespace

diff --git a/src/scion/verification/ranges/test/ranges.test.cpp b/src/scion/verification/ranges/test/ranges.test.cpp
@@ -20,6 +20,7 @@ SCENARIO( "verification ranges" ) {
     std::vector< double > unsorted = { 3., 2., 1. };
     std::vector< double > unique = { 1., 2., 3. };
     std::vector< double > notunique = { 1., 2., 2., 3. };
+    std::vector< double > same = { 1., 1., 1., 1. };
 
     WHEN( "the verification functions are called" ) {
 
@@ -47,6 +48,9 @@ SCENARIO( "verification ranges" ) {
         CHECK( true == verification::isUnique( size1 ) );
         CHECK( true == verification::isUnique( unique ) );
         CHECK( false == verification::isUnique( notunique ) );
+
+        CHECK( false == verification::isAllSameElement( unique ) );
+        CHECK( true == verification::isAllSameElement( same ) );
       } // THEN
     } // WHEN
   } // GIVEN