Added operator- member implementation and improved test cases

* operator- takes a reference to a const std::string::const_iterator and as such enables determining the actual position of a codepoint within a string
* ranged for loops in test cases now take the iterator value by rvalue reference instead of by value

1 files changed, 3 insertions, 3 deletions

diff --git a/test.cc b/test.cc
index 0693970..f0feb74 100644
--- a/test.cc
+++ b/test.cc
@@ -43,7 +43,7 @@ class CodepointIteratorTest : public ::testing::Test {
 };
 
 TEST_F(CodepointIteratorTest, ForwardIteration) {
-	for ( auto tmp : this->sample_ ) {
+	for ( auto&& tmp : this->sample_ ) {
 		size_t length = 0;
 
 		for ( UTF8::CodepointIterator iter(tmp.text.cbegin());
@@ -57,7 +57,7 @@ TEST_F(CodepointIteratorTest, ForwardIteration) {
 }
 
 TEST_F(CodepointIteratorTest, ReverseIteration) {
-	for ( auto tmp : this->sample_ ) {
+	for ( auto&& tmp : this->sample_ ) {
 		size_t length = 0;
 
 		for ( UTF8::CodepointIterator iter(tmp.text.cend());
@@ -71,7 +71,7 @@ TEST_F(CodepointIteratorTest, ReverseIteration) {
 }
 
 TEST_F(CodepointIteratorTest, Dereferencing) {
-	for ( auto tmp : this->sample_ ) {
+	for ( auto&& tmp : this->sample_ ) {
 		size_t index = 0;
 
 		for ( UTF8::CodepointIterator iter(tmp.text.cbegin());