From f5f403a4a6a3e552a82bcad7d883c3355d9d171c Mon Sep 17 00:00:00 2001
From: jzmaddock <john@johnmaddock.co.uk>
Date: Sun, 4 Jan 2026 11:47:48 +0000
Subject: [PATCH] Tweak expected error rates.

---
 test/test_igamma.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/test_igamma.hpp b/test/test_igamma.hpp
index 3ae30c9a7..9f86fdb3f 100644
--- a/test/test_igamma.hpp
+++ b/test/test_igamma.hpp
@@ -275,10 +275,10 @@ void test_spots(T, const char* name = nullptr)
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(50), static_cast<T>(699.25)), static_cast<T>(-522.7927997457481265511084805522296021540768033975669071565674196L), tolerance);
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(50), static_cast<T>(999.75)), static_cast<T>(-805.7977867938474339107474131612354353193501692041340771552419902L), tolerance);
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(50), static_cast<T>(1000.25)), static_cast<T>(-806.2733124989172792095030711884568388681331032891850662521501582L), tolerance);
-   BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(800), static_cast<T>(999.75)), static_cast<T>(-24.33274293617739453303937714319703386675839030466670622049929011L), tolerance);
+   BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(800), static_cast<T>(999.75)), static_cast<T>(-24.33274293617739453303937714319703386675839030466670622049929011L), tolerance * 2);
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(800), static_cast<T>(1000.25)), static_cast<T>(-24.43514173634027477093666725985191846106997808357863808910970142L), tolerance * (boost::math::tools::digits<T>() > 54 ? 20 : 1));
    // Once we get large a,x then error start to accumulate no matter what we do:
-   BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(1200), static_cast<T>(1249.75)), static_cast<T>(-2.565496161584661216769813239648606145255794643472303927896044375L), tolerance * (std::is_floating_point<T>::value ? 1 : 2));
+   BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(1200), static_cast<T>(1249.75)), static_cast<T>(-2.565496161584661216769813239648606145255794643472303927896044375L), tolerance * (std::is_floating_point<T>::value ? 1 : 4));
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(1200), static_cast<T>(1250.25)), static_cast<T>(-2.591934862117586205519309712218581885256650074210410262843591453L), tolerance * (std::is_same<T, float>::value ? 1 : 50));
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(2200), static_cast<T>(2249.75)), static_cast<T>(-1.933779894897391651410597618307863427927461116308937004149240320L), tolerance * (std::is_floating_point<T>::value ? 1 : 10));
    BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(2200), static_cast<T>(2250.25)), static_cast<T>(-1.950346484067948344620463026377077515919992808640737320057812268L), tolerance * (std::is_same<T, float>::value ? 1 : (std::is_floating_point<T>::value ? 100 : 200)));