mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-01-21 06:45:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

stage1: compile error for pointer arithmetic on ptr-to-array

Browse Source 
See #2018
This commit is contained in:
Andrew Kelley 2020-12-03 17:07:13 -07:00
parent fd18252a71
commit afaef36194
2 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/stage1/ir.cpp
View File

@ -17841,7 +17841,7 @@ static bool is_pointer_arithmetic_allowed(ZigType *lhs_type, IrBinOp op) {
return false;
switch (lhs_type->data.pointer.ptr_len) {
case PtrLenSingle:
return lhs_type->data.pointer.child_type->id == ZigTypeIdArray;
return false;
case PtrLenUnknown:
case PtrLenC:
return true;

10
test/compile_errors.zig
View File

@ -2,6 +2,16 @@ const tests = @import("tests.zig");
const std = @import("std");
pub fn addCases(cases: *tests.CompileErrorContext) void {
cases.add("pointer arithmetic on pointer-to-array",
\\export fn foo() void {
\\ var x: [10]u8 = undefined;
\\ var y = &x;
\\ var z = y + 1;
\\}
, &[_][]const u8{
"tmp.zig:4:17: error: integer value 1 cannot be coerced to type '*[10]u8'",
});
cases.add("@Type() union payload is undefined",
\\const Foo = @Type(@import("std").builtin.TypeInfo{
\\ .Struct = undefined,