Add WORKAROUND style definitions for public use.

test/build.jam

@@ -59,6 +59,10 @@ test-suite predef :
     [ compile macos_vs_bsd.c : [ predef-require "BOOST_OS_MACOS" : cpp ] ]
     [ run check_value.cpp : : : <test-info>always_show_run_output
         [ predef-check "BOOST_COMP_CLANG > 0.0.0" "BOOST_OS_LINUX == 0" : : <cxxflags>-DCHECK_VALUE=true ] ]
+    [ run workaround.cpp ]
+    [ compile workaround_strict_config.cpp ]
+    [ run tested_at.cpp ]
+    [ compile-fail tested_at_outdated.cpp : <test-info>always_show_run_output ]
     ;
 
 # Minimal testing done for predef for CI. Since

test/tested_at.cpp

@@ -0,0 +1,62 @@
+/*
+Copyright Rene Rivera 2011-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/predef/version_number.h>
+#include <boost/predef/other/workaround.h>
+#include <exception>
+#include <vector>
+#include <string>
+#include <iostream>
+
+namespace
+{
+    struct test_info
+    {
+        std::string value;
+        bool passed;
+
+        test_info(std::string const & v, bool p) : value(v), passed(p) {}
+        test_info(test_info const & o) : value(o.value), passed(o.passed) {}
+    };
+
+    std::vector<test_info> test_results;
+}
+
+#define PREDEF_CHECK(X) test_results.push_back(test_info(#X,(X)))
+
+void test_BOOST_PREDEF_TESTED_AT()
+{
+    PREDEF_CHECK(BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER(15,15,15),0xF,0xF,0xF));
+    PREDEF_CHECK(BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER(1,0,0),1,0,0));
+    PREDEF_CHECK(BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER(0,9,0),1,0,0));
+    PREDEF_CHECK(BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER(2,0,0),1,0,0));
+    PREDEF_CHECK(!BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER_NOT_AVAILABLE,1,0,0));
+}
+
+int main()
+{
+    test_BOOST_PREDEF_TESTED_AT();
+
+    unsigned fail_count = 0;
+    std::vector<test_info>::iterator i = test_results.begin();
+    std::vector<test_info>::iterator e = test_results.end();
+    for (; i != e; ++i)
+    {
+        std::cout
+            << (i->passed ? "[passed]" : "[failed]")
+            << " " << i->value
+            << std::endl;
+        fail_count += i->passed ? 0 : 1;
+    }
+    std::cout
+        << std::endl
+        << "TOTAL: "
+        << "passed " << (test_results.size()-fail_count) << ", "
+        << "failed " << (fail_count) << ", "
+        << "of " << (test_results.size())
+        << std::endl;
+    return fail_count;
+}

test/tested_at_outdated.cpp

@@ -0,0 +1,18 @@
+/*
+Copyright Rene Rivera 2011-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/predef/version_number.h>
+#define BOOST_DETECT_OUTDATED_WORKAROUNDS
+#include <boost/predef/other/workaround.h>
+
+int main()
+{
+#if BOOST_PREDEF_TESTED_AT(BOOST_VERSION_NUMBER(2,0,0),1,0,0)
+    return 1;
+#else
+    return 0;
+#endif
+}

test/workaround.cpp

@@ -0,0 +1,62 @@
+/*
+Copyright Rene Rivera 2011-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/predef/version_number.h>
+#include <boost/predef/other/workaround.h>
+#include <exception>
+#include <vector>
+#include <string>
+#include <iostream>
+
+namespace
+{
+    struct test_info
+    {
+        std::string value;
+        bool passed;
+
+        test_info(std::string const & v, bool p) : value(v), passed(p) {}
+        test_info(test_info const & o) : value(o.value), passed(o.passed) {}
+    };
+
+    std::vector<test_info> test_results;
+}
+
+#define PREDEF_CHECK(X) test_results.push_back(test_info(#X,(X)))
+
+void test_BOOST_PREDEF_WORKAROUND()
+{
+    PREDEF_CHECK(BOOST_PREDEF_WORKAROUND(BOOST_VERSION_NUMBER(15,15,15),==,0xF,0xF,0xF));
+    PREDEF_CHECK(BOOST_PREDEF_WORKAROUND(BOOST_VERSION_NUMBER(0,9,0),<,1,0,0));
+    PREDEF_CHECK(BOOST_PREDEF_WORKAROUND(BOOST_VERSION_NUMBER(0,9,0),!=,1,0,0));
+    PREDEF_CHECK(BOOST_PREDEF_WORKAROUND(BOOST_VERSION_NUMBER_MIN,<,1,0,0));
+    PREDEF_CHECK(BOOST_PREDEF_WORKAROUND(BOOST_VERSION_NUMBER_MIN,>,0,0,0));
+}
+
+int main()
+{
+    test_BOOST_PREDEF_WORKAROUND();
+
+    unsigned fail_count = 0;
+    std::vector<test_info>::iterator i = test_results.begin();
+    std::vector<test_info>::iterator e = test_results.end();
+    for (; i != e; ++i)
+    {
+        std::cout
+            << (i->passed ? "[passed]" : "[failed]")
+            << " " << i->value
+            << std::endl;
+        fail_count += i->passed ? 0 : 1;
+    }
+    std::cout
+        << std::endl
+        << "TOTAL: "
+        << "passed " << (test_results.size()-fail_count) << ", "
+        << "failed " << (fail_count) << ", "
+        << "of " << (test_results.size())
+        << std::endl;
+    return fail_count;
+}

test/workaround_strict_config.cpp

@@ -0,0 +1,17 @@
+/*
+Copyright Rene Rivera 2011-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/predef/version_number.h>
+#define BOOST_STRICT_CONFIG
+#include <boost/predef/other/workaround.h>
+
+int main()
+{
+#if BOOST_PREDEF_WORKAROUND(BOOST_VERSION_NUMBER_AVAILABLE,==,0,0,1)
+    fail();
+#endif
+    return 0;
+}