[Mesa-dev] [PATCH] Add test to ensure compiler won't allow #undef for some builtins

[Anuj Phogat]

On Wed, Jun 11, 2014 at 5:32 PM, Carl Worth <cworth at cworth.org> wrote:
> Currently verifying that an #undef of __FILE__, __LINE__, or __VERSION__ will
> generate an error.
> ---
>  src/glsl/glcpp/tests/120-undef-builtin.c          | 3 +++
>  src/glsl/glcpp/tests/120-undef-builtin.c.expected | 7 +++++++
>  2 files changed, 10 insertions(+)
>  create mode 100644 src/glsl/glcpp/tests/120-undef-builtin.c
>  create mode 100644 src/glsl/glcpp/tests/120-undef-builtin.c.expected
>
> diff --git a/src/glsl/glcpp/tests/120-undef-builtin.c b/src/glsl/glcpp/tests/120-undef-builtin.c
> new file mode 100644
> index 0000000..49e7696
> --- /dev/null
> +++ b/src/glsl/glcpp/tests/120-undef-builtin.c
> @@ -0,0 +1,3 @@
> +#undef __LINE__
> +#undef __FILE__
> +#undef __VERSION__
> diff --git a/src/glsl/glcpp/tests/120-undef-builtin.c.expected b/src/glsl/glcpp/tests/120-undef-builtin.c.expected
> new file mode 100644
> index 0000000..d6981dc
> --- /dev/null
> +++ b/src/glsl/glcpp/tests/120-undef-builtin.c.expected
> @@ -0,0 +1,7 @@
> +0:1(2): preprocessor error: Built-in (pre-defined) macro names can not be undefined.
> +0:2(1): preprocessor error: Built-in (pre-defined) macro names can not be undefined.
> +0:3(1): preprocessor error: Built-in (pre-defined) macro names can not be undefined.
> +
> +
> +
> +
> --
> 2.0.0
>
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Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>