From a5ba6f9bb7665040045dc0f8087407096630ad7b Mon Sep 17 00:00:00 2001 From: Raphael Kubo da Costa Date: Fri, 8 Feb 2019 02:57:28 +0000 Subject: [PATCH] color_utils: Use std::sqrt() instead of std::sqrtf() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes the build with libstdc++: ../../ui/gfx/color_utils.cc: In function ‘SkColor color_utils::SetDarkestColorForTesting(SkColor)’: ../../ui/gfx/color_utils.cc:434:12: error: ‘sqrtf’ is not a member of ‘std’ std::sqrtf((dark_luminance + 0.05f) * (kWhiteLuminance + 0.05f)) - 0.05f; ^~~~~ ../../ui/gfx/color_utils.cc:434:12: note: suggested alternative: ‘sqrt’ std::sqrtf((dark_luminance + 0.05f) * (kWhiteLuminance + 0.05f)) - 0.05f; ^~~~~ sqrt sqrtf() is not formally part of C++14 as far as I can see even though libc++ has it in . Additionally, we're only dealing with floats in all parts of the expression above, so using the float sqrt() overload should be harmless anyway. Bug: 819294 Change-Id: If6c7bf31819df97a761e6963def6d6506154c34d Reviewed-on: https://chromium-review.googlesource.com/c/1458193 Auto-Submit: Raphael Kubo da Costa Reviewed-by: Peter Kasting Commit-Queue: Raphael Kubo da Costa Cr-Commit-Position: refs/heads/master@{#630140} --- ui/gfx/color_utils.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ui/gfx/color_utils.cc b/ui/gfx/color_utils.cc index c868cd54bac3..92ba1407d594 100644 --- ./ui/gfx/color_utils.cc +++ ./ui/gfx/color_utils.cc @@ -431,7 +431,7 @@ SkColor SetDarkestColorForTesting(SkColor color) { // GetContrastRatio(kWhiteLuminance, g_luminance_midpoint). The formula below // can be verified by plugging it into how GetContrastRatio() operates. g_luminance_midpoint = - std::sqrtf((dark_luminance + 0.05f) * (kWhiteLuminance + 0.05f)) - 0.05f; + std::sqrt((dark_luminance + 0.05f) * (kWhiteLuminance + 0.05f)) - 0.05f; return previous_darkest_color; } -- 2.20.1