Commit ac7217e1f5

@@ -3248,11 +3248,11 @@ fn transFloatingLiteral(c: *Context, scope: *Scope, stmt: *const clang.FloatingL
     var dbl = stmt.getValueAsApproximateDouble();
     const is_negative = dbl < 0;
     if (is_negative) dbl = -dbl;
-    const str = try std.fmt.allocPrint(c.arena, "{d}", .{dbl});
-    var node = if (dbl == std.math.floor(dbl))
-        try Tag.integer_literal.create(c.arena, str)
+    const str = if (dbl == std.math.floor(dbl))
+        try std.fmt.allocPrint(c.arena, "{d}.0", .{dbl})
     else
-        try Tag.float_literal.create(c.arena, str);
+        try std.fmt.allocPrint(c.arena, "{d}", .{dbl});
+    var node = try Tag.float_literal.create(c.arena, str);
     if (is_negative) node = try Tag.negate.create(c.arena, node);
     return maybeSuppressResult(c, scope, used, node);
 }

@@ -3,6 +3,17 @@ const tests = @import("tests.zig");
 const nl = std.cstr.line_sep;
 
 pub fn addCases(cases: *tests.RunTranslatedCContext) void {
+    cases.add("division of floating literals",
+        \\#define _NO_CRT_STDIO_INLINE 1
+        \\#include <stdio.h>
+        \\#define PI 3.14159265358979323846f
+        \\#define DEG2RAD (PI/180.0f)
+        \\int main(void) {
+        \\    printf("DEG2RAD is: %f\n", DEG2RAD);
+        \\    return 0;
+        \\}
+    , "DEG2RAD is: 0.017453" ++ nl);
+
     cases.add("use global scope for record/enum/typedef type transalation if needed",
         \\void bar(void);
         \\void baz(void);

@@ -2428,7 +2428,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
         \\    b: c_int,
         \\};
         \\pub extern var a: struct_Foo;
-        \\pub export var b: f32 = 2;
+        \\pub export var b: f32 = 2.0;
         \\pub export fn foo() void {
         \\    var c: [*c]struct_Foo = undefined;
         \\    _ = a.b;
@@ -2992,17 +2992,17 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
         \\pub extern fn fn_bool(x: bool) void;
         \\pub extern fn fn_ptr(x: ?*c_void) void;
         \\pub export fn call() void {
-        \\    fn_int(@floatToInt(c_int, 3));
-        \\    fn_int(@floatToInt(c_int, 3));
-        \\    fn_int(@floatToInt(c_int, 3));
+        \\    fn_int(@floatToInt(c_int, 3.0));
+        \\    fn_int(@floatToInt(c_int, 3.0));
+        \\    fn_int(@floatToInt(c_int, 3.0));
         \\    fn_int(@as(c_int, 1094861636));
         \\    fn_f32(@intToFloat(f32, @as(c_int, 3)));
         \\    fn_f64(@intToFloat(f64, @as(c_int, 3)));
         \\    fn_char(@bitCast(u8, @truncate(i8, @as(c_int, '3'))));
         \\    fn_char(@bitCast(u8, @truncate(i8, @as(c_int, '\x01'))));
         \\    fn_char(@bitCast(u8, @truncate(i8, @as(c_int, 0))));
-        \\    fn_f32(3);
-        \\    fn_f64(3);
+        \\    fn_f32(3.0);
+        \\    fn_f64(3.0);
         \\    fn_bool(@as(c_int, 123) != 0);
         \\    fn_bool(@as(c_int, 0) != 0);
         \\    fn_bool(@ptrToInt(fn_int) != 0);