zig

commit da506aaf6ea731c72daaac649dba788407db0d6c (tree)
parent 50457482b16dc402ad0eff9f7990258257e2dd62
Author: february cozzocrea <91439207+f-cozzocrea@users.noreply.github.com>
Date:   Tue, 16 Jan 2024 08:12:05 -0800

translate-c: Explicit cast bool from float fix


Diffstat:
M
src/translate_c.zig
 | 
8
++++++++
A
test/cases/run_translated_c/explicit_cast_bool_from_float.c
 | 
10
++++++++++

2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/src/translate_c.zig b/src/translate_c.zig
@@ -2380,6 +2380,14 @@ fn transCCast(
         });
     }
     if (cIsFloating(src_type) and !cIsFloating(dst_type)) {
+        // bool expression: floating val != 0
+        if (qualTypeIsBoolean(dst_type)) {
+            return Tag.not_equal.create(c.arena, .{
+                .lhs = expr,
+                .rhs = Tag.zero_literal.init(),
+            });
+        }
+
         // @as(dest_type, @intFromFloat(val))
         return Tag.as.create(c.arena, .{
             .lhs = dst_node,
diff --git a/test/cases/run_translated_c/explicit_cast_bool_from_float.c b/test/cases/run_translated_c/explicit_cast_bool_from_float.c
@@ -0,0 +1,10 @@
+#include <stdbool.h>
+
+int main() {
+  float f = 2.0f;
+  bool b = (bool) f;
+  return 0;
+}
+
+// run-translated-c
+// c_frontends=aro,clang