[Spice-devel] [PATCH v2] miLineArc(): initialize edge1, edge2

[Jonathon Jongsma]

When compiling spice-common with meson/ninja under "release" mode, I get
several compiler warnings about possibly-uninitialized members. For
example:

    ../subprojects/spice-common/common/lines.c: In function ‘miLineArc’:
    ../subprojects/spice-common/common/lines.c:2167:17: error: ‘edge2.dx’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
             edge->e += edge->dx; \
                     ^~
    ../subprojects/spice-common/common/lines.c:2426:24: note: ‘edge2.dx’ was declared here
         PolyEdgeRec edge1, edge2;
                            ^~~~~

Initializing these structures to zero silences the warnings.
---

Changes in v2:
 - only keep one compiler warning in log
 - change spacing to match upstream changes to this file

 common/lines.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/lines.c b/common/lines.c
index e5097c4..dadaf86 100644
--- a/common/lines.c
+++ b/common/lines.c
@@ -2423,7 +2423,7 @@ miLineArc (GCPtr pGC,
     int xorgi = 0, yorgi = 0;
     Spans spanRec;
     int n;
-    PolyEdgeRec edge1, edge2;
+    PolyEdgeRec edge1 = { 0 }, edge2 = { 0 };
     int edgey1, edgey2;
     Boolean edgeleft1, edgeleft2;
 
-- 
2.14.3