5 files changed, 10 insertions, 10 deletions
diff --git a/libpqpp/pq-column.cpp b/libpqpp/pq-column.cpp
index e743e60..4fac1ac 100644
--- a/libpqpp/pq-column.cpp
+++ b/libpqpp/pq-column.cpp
@@ -5,9 +5,9 @@
 #include <boost/date_time/posix_time/posix_time.hpp>
 
 PQ::Column::Column(const SelectBase * s, unsigned int i) :
-	DB::Column(PQfname(s->execRes, i), i),
+	DB::Column(PQfname(s->execRes, (int)i), i),
 	sc(s),
-	oid(PQftype(sc->execRes, colNo)),
+	oid(PQftype(sc->execRes, (int)colNo)),
 	buf(nullptr)
 {
 }
@@ -22,19 +22,19 @@ PQ::Column::~Column()
 bool
 PQ::Column::isNull() const
 {
-	return PQgetisnull(sc->execRes, sc->tuple, colNo);
+	return PQgetisnull(sc->execRes, (int)sc->tuple, (int)colNo);
 }
 
 std::size_t
 PQ::Column::length() const
 {
-	return PQgetlength(sc->execRes, sc->tuple, colNo);
+	return PQgetlength(sc->execRes, (int)sc->tuple, (int)colNo);
 }
 
 const char *
 PQ::Column::value() const
 {
-	return PQgetvalue(sc->execRes, sc->tuple, colNo);
+	return PQgetvalue(sc->execRes, (int)sc->tuple, (int)colNo);
 }
 
 void
diff --git a/libpqpp/pq-column.h b/libpqpp/pq-column.h
index 5c71d86..b0a568d 100644
--- a/libpqpp/pq-column.h
+++ b/libpqpp/pq-column.h
@@ -11,7 +11,7 @@ namespace PQ {
 			Column(const SelectBase *, unsigned int field);
 			~Column();
 
-			bool isNull() const override;
+			[[nodiscard]] bool isNull() const override;
 			void apply(DB::HandleField &) const override;
 
 		protected:
diff --git a/libpqpp/pq-cursorselectcommand.cpp b/libpqpp/pq-cursorselectcommand.cpp
index 2873067..820518f 100644
--- a/libpqpp/pq-cursorselectcommand.cpp
+++ b/libpqpp/pq-cursorselectcommand.cpp
@@ -62,13 +62,13 @@ bool
 PQ::CursorSelectCommand::fetch()
 {
 	execute();
-	if ((tuple >= (nTuples - 1)) && (nTuples == fTuples)) {
+	if ((tuple + 1 >= nTuples) && (nTuples == fTuples)) {
 		// Delete the previous result set
 		PQclear(execRes);
 		execRes = nullptr;
 		fetchTuples();
 	}
-	if (tuple++ < (nTuples - 1)) {
+	if (++tuple < nTuples) {
 		return true;
 	}
 	else {
diff --git a/libpqpp/pq-cursorselectcommand.h b/libpqpp/pq-cursorselectcommand.h
index 0f59687..f75c36b 100644
--- a/libpqpp/pq-cursorselectcommand.h
+++ b/libpqpp/pq-cursorselectcommand.h
@@ -22,7 +22,7 @@ namespace PQ {
 			std::string mkdeclare() const;
 
 			mutable bool executed;
-			int fTuples;
+			unsigned int fTuples;
 			std::string s_declare;
 			std::string s_fetch;
 			std::string s_close;
diff --git a/libpqpp/pq-selectbase.h b/libpqpp/pq-selectbase.h
index 2a01ede..bda6348 100644
--- a/libpqpp/pq-selectbase.h
+++ b/libpqpp/pq-selectbase.h
@@ -15,7 +15,7 @@ namespace PQ {
 
 			void createColumns(PGresult *);
 
-			int nTuples, tuple;
+			unsigned int nTuples, tuple;
 			PGresult * execRes;
 			bool binary;
 	};