Commit fd3415ad5e

@@ -4001,8 +4001,7 @@ fn transCPtrCast(
             // For opaque types a ptrCast is enough
             expr
         else blk: {
-            const child_type_node = try transQualType(c, scope, child_type, loc);
-            const alignof = try Tag.std_meta_alignment.create(c.arena, child_type_node);
+            const alignof = try Tag.std_meta_alignment.create(c.arena, dst_type_node);
             const align_cast = try Tag.align_cast.create(c.arena, .{ .lhs = alignof, .rhs = expr });
             break :blk align_cast;
         };

@@ -1485,7 +1485,19 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
     , &[_][]const u8{
         \\pub export fn ptrcast() [*c]f32 {
         \\    var a: [*c]c_int = undefined;
-        \\    return @ptrCast([*c]f32, @alignCast(@import("std").meta.alignment(f32), a));
+        \\    return @ptrCast([*c]f32, @alignCast(@import("std").meta.alignment([*c]f32), a));
+        \\}
+    });
+
+    cases.add("casting pointer to pointer",
+        \\float **ptrptrcast() {
+        \\    int **a;
+        \\    return (float **)a;
+        \\}
+    , &[_][]const u8{
+        \\pub export fn ptrptrcast() [*c][*c]f32 {
+        \\    var a: [*c][*c]c_int = undefined;
+        \\    return @ptrCast([*c][*c]f32, @alignCast(@import("std").meta.alignment([*c][*c]f32), a));
         \\}
     });
 
@@ -1509,23 +1521,23 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
         \\pub export fn test_ptr_cast() void {
         \\    var p: ?*anyopaque = undefined;
         \\    {
-        \\        var to_char: [*c]u8 = @ptrCast([*c]u8, @alignCast(@import("std").meta.alignment(u8), p));
+        \\        var to_char: [*c]u8 = @ptrCast([*c]u8, @alignCast(@import("std").meta.alignment([*c]u8), p));
         \\        _ = to_char;
-        \\        var to_short: [*c]c_short = @ptrCast([*c]c_short, @alignCast(@import("std").meta.alignment(c_short), p));
+        \\        var to_short: [*c]c_short = @ptrCast([*c]c_short, @alignCast(@import("std").meta.alignment([*c]c_short), p));
         \\        _ = to_short;
-        \\        var to_int: [*c]c_int = @ptrCast([*c]c_int, @alignCast(@import("std").meta.alignment(c_int), p));
+        \\        var to_int: [*c]c_int = @ptrCast([*c]c_int, @alignCast(@import("std").meta.alignment([*c]c_int), p));
         \\        _ = to_int;
-        \\        var to_longlong: [*c]c_longlong = @ptrCast([*c]c_longlong, @alignCast(@import("std").meta.alignment(c_longlong), p));
+        \\        var to_longlong: [*c]c_longlong = @ptrCast([*c]c_longlong, @alignCast(@import("std").meta.alignment([*c]c_longlong), p));
         \\        _ = to_longlong;
         \\    }
         \\    {
-        \\        var to_char: [*c]u8 = @ptrCast([*c]u8, @alignCast(@import("std").meta.alignment(u8), p));
+        \\        var to_char: [*c]u8 = @ptrCast([*c]u8, @alignCast(@import("std").meta.alignment([*c]u8), p));
         \\        _ = to_char;
-        \\        var to_short: [*c]c_short = @ptrCast([*c]c_short, @alignCast(@import("std").meta.alignment(c_short), p));
+        \\        var to_short: [*c]c_short = @ptrCast([*c]c_short, @alignCast(@import("std").meta.alignment([*c]c_short), p));
         \\        _ = to_short;
-        \\        var to_int: [*c]c_int = @ptrCast([*c]c_int, @alignCast(@import("std").meta.alignment(c_int), p));
+        \\        var to_int: [*c]c_int = @ptrCast([*c]c_int, @alignCast(@import("std").meta.alignment([*c]c_int), p));
         \\        _ = to_int;
-        \\        var to_longlong: [*c]c_longlong = @ptrCast([*c]c_longlong, @alignCast(@import("std").meta.alignment(c_longlong), p));
+        \\        var to_longlong: [*c]c_longlong = @ptrCast([*c]c_longlong, @alignCast(@import("std").meta.alignment([*c]c_longlong), p));
         \\        _ = to_longlong;
         \\    }
         \\}