Explicitly delete more assignment operators

3 files changed, 4 insertions, 0 deletions

diff --git a/src/io/line.hpp b/src/io/line.hpp
index 78e1d25..00f0a11 100644
--- a/src/io/line.hpp
+++ b/src/io/line.hpp
@@ -67,6 +67,7 @@ namespace io
         explicit
         LineReader(ZString name);
         LineReader(LineReader&&) = delete;
+        LineReader& operator = (LineReader&&) = delete;
         // needed for unit tests
         LineReader(ZString name, FD fd);
 
@@ -81,6 +82,7 @@ namespace io
         explicit
         LineCharReader(ZString name);
         LineCharReader(LineCharReader&&) = delete;
+        LineCharReader& operator = (LineCharReader&&) = delete;
         LineCharReader(ZString name, FD fd);
 
         bool get(LineChar& c);
diff --git a/src/io/read.hpp b/src/io/read.hpp
index 14283c5..4830fa4 100644
--- a/src/io/read.hpp
+++ b/src/io/read.hpp
@@ -38,6 +38,7 @@ namespace io
         ReadFile(FD fd);
         explicit
         ReadFile(ZString name);
+        ReadFile& operator = (ReadFile&&) = delete;
         ReadFile(ReadFile&&) = delete;
         ~ReadFile();
 
diff --git a/src/io/write.hpp b/src/io/write.hpp
index a52c176..0a238c0 100644
--- a/src/io/write.hpp
+++ b/src/io/write.hpp
@@ -43,6 +43,7 @@ namespace io
         explicit
         WriteFile(ZString name, bool linebuffered=false);
         WriteFile(WriteFile&&) = delete;
+        WriteFile& operator = (WriteFile&&) = delete;
         ~WriteFile();
 
         void put(char);