From 0276e583db5a5d207e64feac8ab47df2ffd5204b Mon Sep 17 00:00:00 2001
From: Kefu Chai <tchaikov@gmail.com>
Date: Fri, 7 Jun 2024 18:51:49 +0800
Subject: [PATCH] Add patch for fixing a test failure in Boost.Random

the patch addresses a test failure in Boost.Random:
```
terminate called after throwing an instance of 'boost::wrapexcept<std::overflow_error>'
  what():  Error in function float_next<double>(double): Overflow Error
Running 21 test cases...
unknown location(0): fatal error: in "distributions_test<boost__random__piecewise_constant_distribution<boost__multiprecision__number<boost__multiprecision__backends__cpp_bin_float<100u_ (boost__multiprecision__backends__digit_base_type)10_ void_ int_ 0_ 0>_ (boost__multiprecision__expression_template_option)1>_ double>>": signal: SIGABRT (application abort requested)
multiprecision_float_test.cpp(115): last checkpoint
```

The backported patch is included by boost 1.84
See https://github.com/boostorg/random/pull/88

Signed-off-by: Kefu Chai <tchaikov@gmail.com>
---
 boost-1.84-random-test-overflow.patch | 30 +++++++++++++++++++++++++++
 boost.spec                            |  8 ++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 boost-1.84-random-test-overflow.patch

diff --git a/boost-1.84-random-test-overflow.patch b/boost-1.84-random-test-overflow.patch
new file mode 100644
index 0000000..5c8f6de
--- /dev/null
+++ b/boost-1.84-random-test-overflow.patch
@@ -0,0 +1,30 @@
+From 4239d93dad32a11e4c3829050f8070d456266133 Mon Sep 17 00:00:00 2001
+From: jzmaddock <john@johnmaddock.co.uk>
+Date: Wed, 1 Jun 2022 19:35:36 +0100
+Subject: [PATCH] Update multiprecision_float_test.cpp to not overflow type
+ double. Previously the max value for uint1024_t could just squeeze into a
+ double because truncation occurred during the conversion, now that cpp_int
+ performs correctly rounded conversions, overflow occurs, and the computation
+ fails.  Changed the problem distribution to use a multiprecision weight type,
+ rather than double.
+
+---
+ test/multiprecision_float_test.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test/multiprecision_float_test.cpp b/test/multiprecision_float_test.cpp
+index bc2a936..2b53483 100644
+--- a/libs/random/test/multiprecision_float_test.cpp
++++ b/libs/random/test/multiprecision_float_test.cpp
+@@ -77,7 +77,7 @@ typedef boost::mpl::list <
+    boost::random::lognormal_distribution<big_float>,
+    boost::random::normal_distribution<big_float>,
+ #ifndef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+-   boost::random::piecewise_constant_distribution<big_float>,
++   boost::random::piecewise_constant_distribution<big_float, big_float>,
+    boost::random::piecewise_linear_distribution<big_float>,
+ #endif
+    boost::random::student_t_distribution<big_float>,
+-- 
+2.45.2
+
diff --git a/boost.spec b/boost.spec
index 4e0e14a..ca3fc4e 100644
--- a/boost.spec
+++ b/boost.spec
@@ -42,7 +42,7 @@ Name: boost
 %global real_name boost
 Summary: The free peer-reviewed portable C++ source libraries
 Version: 1.81.0
-Release: 9%{?dist}
+Release: 10%{?dist}
 License: BSL-1.0 AND MIT AND Python-2.0.1
 
 # Replace each . with _ in %%{version}
@@ -159,6 +159,9 @@ Patch7: boost-1.81.0-always-initialize-member-variable.patch
 # https://github.com/boostorg/math/issues/1132
 Patch8: boost-1.83-math-Correct-float_next-INF-and-float_prior-INF.patch
 
+# https://github.com/boostorg/random/pull/88
+Patch9: boost-1.84-random-test-overflow.patch
+
 %bcond_with tests
 %bcond_with docs_generated
 
@@ -1288,6 +1291,9 @@ fi
 %{_mandir}/man1/b2.1*
 
 %changelog
+* Fri Jun 07 2024 Kefu Chai <tchaikov@fedoraproject.org> - 1.81.0-10
+- Add patch to fix test failure in Boost.Random.
+
 * Sat May 25 2024 Kefu Chai <tchaikov@fedoraproject.org> - 1.81.0-9
 - Add patch to fix Boost.Math bug where float_next(+INF) and float_prior(-INF)
   returns NaN, but they should return +INF and -INF respectively.