Re: [Minios-devel] [UNIKRAFT PATCH v2] lib/nolibc: Provide stdbool.h

[Sharan Santhanam <sharan.santhanam@xxxxxxxxx>]

Reviewed-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx>

On 2/19/19 4:50 PM, Simon Kuenzer wrote:
> Introduce a minimal `stdbool.h` header that provides definitions
> of `bool`, `true`, and `false`.
> The file is copied from LLVM Clang 7.0.1 (https://clang.llvm.org/).
>
> Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
> ---
>   lib/nolibc/include/stdbool.h | 49 ++++++++++++++++++++++++++++++++++++++++++++
>   1 file changed, 49 insertions(+)
>   create mode 100644 lib/nolibc/include/stdbool.h
>
> diff --git a/lib/nolibc/include/stdbool.h b/lib/nolibc/include/stdbool.h
> new file mode 100644
> index 00000000..9ec92754
> --- /dev/null
> +++ b/lib/nolibc/include/stdbool.h
> @@ -0,0 +1,49 @@
> +/* SPDX-License-Identifier: MIT */
> +/*===---- stdbool.h - Standard header for booleans -------------------------===
> + *
> + * Copyright (c) 2008 Eli Friedman
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a copy
> + * of this software and associated documentation files (the "Software"), to 
> deal
> + * in the Software without restriction, including without limitation the rights
> + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> + * copies of the Software, and to permit persons to whom the Software is
> + * furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
> + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
> FROM,
> + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
> + * THE SOFTWARE.
> + *
> + *===-----------------------------------------------------------------------===
> + */
> +/* Retrieved from LLVM Clang 7.0.1: lib/Headers/stdbool.h */
> +
> +#ifndef __STDBOOL_H
> +#define __STDBOOL_H
> +
> +/* Don't define bool, true, and false in C++, except as a GNU extension. */
> +#ifndef __cplusplus
> +#define bool _Bool
> +#define true 1
> +#define false 0
> +#elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
> +/* Define _Bool as a GNU extension. */
> +#define _Bool bool
> +#if __cplusplus < 201103L
> +/* For C++98, define bool, false, true as a GNU extension. */
> +#define bool  bool
> +#define false false
> +#define true  true
> +#endif
> +#endif
> +
> +#define __bool_true_false_are_defined 1
> +
> +#endif /* __STDBOOL_H */
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