Eliminate clang warnings

-Wconstant-conversion
-Wenum-compare-switch
-Wpointer-bool-conversion
-Wundefined-bool-conversion
-Wunused-value

Excluding deprecation warnings and 3rdparty directory.

3 files changed, 4 insertions, 2 deletions

diff --git a/src/extension/internal/cairo-render-context.cpp b/src/extension/internal/cairo-render-context.cpp
index 4464742dd..60e83afef 100644
--- a/src/extension/internal/cairo-render-context.cpp
+++ b/src/extension/internal/cairo-render-context.cpp
@@ -932,6 +932,8 @@ CairoRenderContext::_setSurfaceMetadata(cairo_surface_t *surface)
             }
             break;
 #endif
+        default:
+            g_warning("unsupported target %d\n", _target);
     }
 }
 
diff --git a/src/extension/internal/emf-print.cpp b/src/extension/internal/emf-print.cpp
index 6d330f2ea..36f162ef9 100644
--- a/src/extension/internal/emf-print.cpp
+++ b/src/extension/internal/emf-print.cpp
@@ -1516,7 +1516,7 @@ bool PrintEmf::print_simple_shape(Geom::PathVector const &pathv, const Geom::Aff
 
             if (is_straight_curve(*cit)) {
                 lines++;
-            } else if (&*cit) {
+            } else if (dynamic_cast<Geom::CubicBezier const *>(&*cit)) {
                 curves++;
             }
         }
diff --git a/src/extension/internal/wmf-print.cpp b/src/extension/internal/wmf-print.cpp
index 6340bf0b6..79de51925 100644
--- a/src/extension/internal/wmf-print.cpp
+++ b/src/extension/internal/wmf-print.cpp
@@ -963,7 +963,7 @@ bool PrintWmf::print_simple_shape(Geom::PathVector const &pathv, const Geom::Aff
 
             if (is_straight_curve(*cit)) {
                 lines++;
-            } else if (&*cit) {
+            } else if (dynamic_cast<Geom::CubicBezier const *>(&*cit)) {
                 curves++;
             }
         }