[PATCH] dwrite: Silence a compiler warning in test_fontsetbuilder.

[Gerald Pfeifer]

GCC 10 alphas (and probably before that) issue

font.c: In function ‘test_fontsetbuilder’:
  font.c:9149:21: warning: ‘ivalue’ may be used uninitialized in this 
  function [-Wmaybe-uninitialized]
   9149 |                     wsprintfW(buffW, fmtW, ivalue);
        |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

in dlls/dwrite/tests/font.c.

The structure of our code is

switch ... {
    case 1: ivalue =... ; break;
    case 2: ivalue =... ; break;
    default: ;
  }
  switch ... {
    case 1: case 2: do something with ivalue;
    default: ;
  }

so this looks like a false positive, however one that appears rather
involved for compilers to handle.

Hence, best to pragmatically silence this by initializing ivalue in 
the default case?

Gerald

---
 dlls/dwrite/tests/font.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/dwrite/tests/font.c b/dlls/dwrite/tests/font.c
index 309c0a2b08..3b6c2dc3c2 100644
--- a/dlls/dwrite/tests/font.c
+++ b/dlls/dwrite/tests/font.c
@@ -9126,7 +9126,7 @@ todo_wine
                     ivalue = IDWriteFont3_GetStyle(font);
                     break;
                 default:
-                    ;
+                    ivalue = 0;
                 }

switch (id)