[coretext] Fix double promotion warnings by making casts explicit
diff --git a/src/hb-coretext.cc b/src/hb-coretext.cc
index 8c9b49c..8885cfe 100644
--- a/src/hb-coretext.cc
+++ b/src/hb-coretext.cc
@@ -302,7 +302,7 @@
if (unlikely (!face_data)) return nullptr;
CGFontRef cg_font = (CGFontRef) (const void *) face->data.coretext;
- CGFloat font_size = font->ptem <= 0.f ? HB_CORETEXT_DEFAULT_FONT_SIZE : font->ptem;
+ CGFloat font_size = (CGFloat) (font->ptem <= 0.f ? HB_CORETEXT_DEFAULT_FONT_SIZE : font->ptem);
CTFontRef ct_font = create_ct_font (cg_font, font_size);
if (unlikely (!ct_font))
@@ -327,7 +327,7 @@
const hb_coretext_font_data_t *data = font->data.coretext;
if (unlikely (!data)) return nullptr;
- if (fabs (CTFontGetSize ((CTFontRef) data) - font->ptem) > .5)
+ if (fabs (CTFontGetSize ((CTFontRef) data) - (CGFloat) font->ptem) > .5)
{
/* XXX-MT-bug
* Note that evaluating condition above can be dangerous if another thread
