| Issue |
124913
|
| Summary |
Syntax error for overloaded operator[] in 32-bit address space
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
ararmine
|
**x86-64 clang 19.1.0** issues a compilation error for the following example:
1. cat ex.cpp
```
struct value {
public:
operator int() const;
struct value &operator[](const char * __ptr32 _param_1);
};
extern struct value *new_value();
int json_send_error(int status)
{
struct value * v = new_value();
(void)(*v)["error"];
return 0;
}
```
2. clang ex.c -fms-extensions -S
```
ex.cpp:13:13: error: use of overloaded operator '[]' is ambiguous (with operand types 'struct value' and 'const char[6]')
13 | (void)(*v)["error"];
| ~~~~^~~~~~~~
ex.xpp:5:23: note: candidate function
5 | struct value &operator[](const char * __ptr32 _param_1);
| ^
ex.cpp:13:13: note: built-in candidate operator[](long, const char *)
13 | (void)(*v)["error"];
| ^
1 error generated.
```
https://godbolt.org/z/dbvEGfz13
**x64 MSVC v.19** compiles successfully https://godbolt.org/z/qWc584f5f
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