[PATCH 7/9] math.h: add wrappers for the missing finite() functions
Bernhard Reutner-Fischer
rep.dot.nop at gmail.com
Fri Mar 29 12:48:14 UTC 2013
On Fri, Sep 21, 2012 at 05:29:17PM +0200, Florian Fainelli wrote:
> From: Felix Fietkau <nbd at openwrt.org>
>
> Signed-off-by: Felix Fietkau <nbd at openwrt.org>
> ---
> include/math.h | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/include/math.h b/include/math.h
> index d3f86f9..4995b55 100644
> --- a/include/math.h
> +++ b/include/math.h
> @@ -195,7 +195,7 @@ extern int signgam;
>
>
> /* ISO C99 defines some generic macros which work on any data type. */
> -#ifdef __USE_ISOC99
> +#if defined(__USE_ISOC99) || defined(__USE_BSD)
>
> /* Get the architecture specific values describing the floating-point
> evaluation. The following symbols will get defined:
> @@ -315,6 +315,11 @@ enum
>
> #endif /* Use ISO C99. */
>
> +/* BSD compat */
Does that work proper for __NO_LONG_DOUBLE_MATH ?
Missing __USE_BSD guard?
Can't you just define them to isfinite?
thanks,
> +#define finite(x) __finite(x)
> +#define finitef(x) __finitef(x)
> +#define finitel(x) __finitel(x)
> +
> #ifdef __USE_MISC
> /* Support for various different standard error handling behaviors. */
> typedef enum
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