[libcamera-devel] [PATCH 06/11] Replaces abs() with std::abs(), which supports double-precision in clang.

[Laurent Pinchart]

Hi Nicholas,

Thank you for the patch.

On Mon, Oct 24, 2022 at 12:55:38AM -0500, Nicholas Roth via libcamera-devel wrote:
> From: Nicholas Roth <nicholas at rothemail.net>

Apart from the commit message issue raised by Kieran, the code change
looks good to me. I expect to merge the patch from v3.

> ---
>  src/ipa/raspberrypi/controller/pwl.cpp | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/src/ipa/raspberrypi/controller/pwl.cpp b/src/ipa/raspberrypi/controller/pwl.cpp
> index c59f5fa1..70c2e24b 100644
> --- a/src/ipa/raspberrypi/controller/pwl.cpp
> +++ b/src/ipa/raspberrypi/controller/pwl.cpp
> @@ -6,6 +6,7 @@
>   */
>  
>  #include <cassert>
> +#include <cmath>
>  #include <stdexcept>
>  
>  #include "pwl.h"
> @@ -168,7 +169,7 @@ Pwl Pwl::compose(Pwl const &other, const double eps) const
>  	while (thisSpan != (int)points_.size() - 1) {
>  		double dx = points_[thisSpan + 1].x - points_[thisSpan].x,
>  		       dy = points_[thisSpan + 1].y - points_[thisSpan].y;
> -		if (abs(dy) > eps &&
> +		if (std::abs(dy) > eps &&
>  		    otherSpan + 1 < (int)other.points_.size() &&
>  		    points_[thisSpan + 1].y >=
>  			    other.points_[otherSpan + 1].x + eps) {
> @@ -181,7 +182,7 @@ Pwl Pwl::compose(Pwl const &other, const double eps) const
>  				 points_[thisSpan].y) *
>  					dx / dy;
>  			thisY = other.points_[++otherSpan].x;
> -		} else if (abs(dy) > eps && otherSpan > 0 &&
> +		} else if (std::abs(dy) > eps && otherSpan > 0 &&
>  			   points_[thisSpan + 1].y <=
>  				   other.points_[otherSpan - 1].x - eps) {
>  			/*

-- 
Regards,

Laurent Pinchart