Include and test system_error.hpp in test/quick.cpp

This reverts commit 3164b387a5.

.travis.yml

@@ -127,6 +127,17 @@ matrix:
           sources:
             - ubuntu-toolchain-r-test
 
+    - os: linux
+      dist: bionic
+      compiler: g++-10
+      env: TOOLSET=gcc COMPILER=g++-10 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - g++-10
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       compiler: g++-9
       env: UBSAN=1 TOOLSET=gcc COMPILER=g++-9 CXXSTD=03,11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1 LINKFLAGS=-fuse-ld=gold
@@ -275,15 +286,30 @@ matrix:
               key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
 
     - os: linux
-      compiler: clang++-8
-      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-8 CXXSTD=03,11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1
+      dist: xenial
+      compiler: clang++-10
+      env: TOOLSET=clang COMPILER=clang++-10 CXXSTD=03,11,14,17,2a
       addons:
         apt:
           packages:
-            - clang-8
+            - clang-10
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-xenial-8
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-10 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
+    - os: linux
+      dist: xenial
+      compiler: clang++-10
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-10 CXXSTD=03,11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1
+      addons:
+        apt:
+          packages:
+            - clang-10
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-10 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
 
     - os: linux
       dist: trusty
@@ -311,6 +337,10 @@ matrix:
       compiler: clang++
       env: UBSAN=1 TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
 
+    - os: freebsd
+      compiler: clang++
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,17,2a
+
     - os: linux
       env: CMAKE=1
       script:

doc/system-docinfo-footer.html

@@ -1,5 +1,6 @@
 <style>
 
 *:not(pre)>code { background: none; color: #600000; }
+:not(pre):not([class^=L])>code { background: none; color: #600000; }
 
 </style>

doc/system/changes.adoc

@@ -8,9 +8,13 @@ http://www.boost.org/LICENSE_1_0.txt
 ////
 
 [#changes]
-# Release History
+# Revision History
 :idprefix:
 
+## Changes in Boost 1.74
+
+* `operator bool()` now returns `failed()` instead of `value() != 0`.
+
 ## Changes in Boost 1.69
 
 * Boost.System is now header-only. A stub library is still built for

doc/system/reference.adoc

@@ -568,7 +568,8 @@ constexpr void clear() noexcept;
 [none]
 * {blank}
 +
-Ensures: :: `val_ == 0`; `*cat_ == system_category()`.
+Ensures: ::
+  `val_ == 0`; `*cat_ == system_category()`.
 
 #### Observers
 
@@ -626,7 +627,7 @@ constexpr explicit operator bool() const noexcept;
 [none]
 * {blank}
 +
-Returns: :: `val_ != 0`.
+Returns: :: `failed()`.
 
 ```
 operator std::error_code() const;
@@ -634,7 +635,8 @@ operator std::error_code() const;
 [none]
 * {blank}
 +
-Returns: :: `std::error_code( val_, *cat_ )`.
+Returns: ::
+  `std::error_code( val_, *cat_ )`.
 
 ### Class error_condition
 
@@ -711,7 +713,8 @@ template <class ErrorConditionEnum>
 * {blank}
 +
 Ensures: :: `*this == make_error_condition( e )`.
-Remarks: :: This constructor is only enabled when `is_error_condition_enum<ErrorConditionEnum>::value` is `true`.
+Remarks: ::
+  This constructor is only enabled when `is_error_condition_enum<ErrorConditionEnum>::value` is `true`.
 
 #### Modifiers
 
@@ -739,7 +742,8 @@ constexpr void clear() noexcept;
 [none]
 * {blank}
 +
-Ensures: :: `val_ == 0`; `*cat_ == generic_category()`.
+Ensures: ::
+  `val_ == 0`; `*cat_ == generic_category()`.
 
 #### Observers
 
@@ -789,7 +793,7 @@ constexpr explicit operator bool() const noexcept;
 [none]
 * {blank}
 +
-Returns: :: `val_ != 0`.
+Returns: :: `failed()`.
 
 ```
 operator std::error_condition() const;
@@ -797,7 +801,8 @@ operator std::error_condition() const;
 [none]
 * {blank}
 +
-Returns: :: `std::error_condition( val_, *cat_ )`.
+Returns: ::
+  `std::error_condition( val_, *cat_ )`.
 
 ### Nonmember functions
 
@@ -882,7 +887,8 @@ std::size_t hash_value( const error_code & ec );
 [none]
 * {blank}
 +
-Returns: :: A hash value representing `ec`.
+Returns: ::
+  A hash value representing `ec`.
 
 ## <boost/system/system_error.hpp>
 
@@ -941,7 +947,8 @@ system_error( int ev, const error_category & ecat );
 [none]
 * {blank}
 +
-Ensures: :: `code() == error_code( ev, ecat )`.
+Ensures: ::
+  `code() == error_code( ev, ecat )`.
 
 #### Observers
 

include/boost/system/detail/std_interoperability.hpp

@@ -47,23 +47,23 @@ public:
         }
     }
 
-    virtual const char * name() const BOOST_NOEXCEPT
+    const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE
     {
         return pc_->name();
     }
 
-    virtual std::string message( int ev ) const
+    std::string message( int ev ) const BOOST_OVERRIDE
     {
         return pc_->message( ev );
     }
 
-    virtual std::error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT
+    std::error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT BOOST_OVERRIDE
     {
         return pc_->default_error_condition( ev );
     }
 
-    virtual bool equivalent( int code, const std::error_condition & condition ) const BOOST_NOEXCEPT;
-    virtual bool equivalent( const std::error_code & code, int condition ) const BOOST_NOEXCEPT;
+    bool equivalent( int code, const std::error_condition & condition ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
+    bool equivalent( const std::error_code & code, int condition ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
 };
 
 #if !defined(__SUNPRO_CC) // trailing __global is not supported

include/boost/system/error_code.hpp

@@ -287,13 +287,13 @@ public:
     {
     }
 
-    const char * name() const BOOST_NOEXCEPT
+    const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE
     {
         return "generic";
     }
 
-    std::string message( int ev ) const;
-    char const * message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT;
+    std::string message( int ev ) const BOOST_OVERRIDE;
+    char const * message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
 };
 
 class BOOST_SYMBOL_VISIBLE system_error_category: public error_category
@@ -305,15 +305,15 @@ public:
     {
     }
 
-    const char * name() const BOOST_NOEXCEPT
+    const char * name() const BOOST_NOEXCEPT BOOST_OVERRIDE
     {
         return "system";
     }
 
-    error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT;
+    error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
 
-    std::string message( int ev ) const;
-    char const * message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT;
+    std::string message( int ev ) const BOOST_OVERRIDE;
+    char const * message( int ev, char * buffer, std::size_t len ) const BOOST_NOEXCEPT BOOST_OVERRIDE;
 };
 
 } // namespace detail
@@ -515,7 +515,7 @@ public:
 
     BOOST_SYSTEM_CONSTEXPR explicit operator bool() const BOOST_NOEXCEPT  // true if error
     {
-        return val_ != 0;
+        return failed_;
     }
 
 #else
@@ -525,12 +525,12 @@ public:
 
     BOOST_SYSTEM_CONSTEXPR operator unspecified_bool_type() const BOOST_NOEXCEPT  // true if error
     {
-        return val_ != 0? unspecified_bool_true: 0;
+        return failed_? unspecified_bool_true: 0;
     }
 
     BOOST_SYSTEM_CONSTEXPR bool operator!() const BOOST_NOEXCEPT  // true if no error
     {
-        return val_ == 0;
+        return !failed_;
     }
 
 #endif
@@ -656,7 +656,7 @@ public:
 
     BOOST_SYSTEM_CONSTEXPR explicit operator bool() const BOOST_NOEXCEPT  // true if error
     {
-        return val_ != 0;
+        return failed_;
     }
 
 #else
@@ -666,12 +666,12 @@ public:
 
     BOOST_SYSTEM_CONSTEXPR operator unspecified_bool_type() const  BOOST_NOEXCEPT // true if error
     {
-        return val_ != 0? unspecified_bool_true: 0;
+        return failed_? unspecified_bool_true: 0;
     }
 
     BOOST_SYSTEM_CONSTEXPR bool operator!() const BOOST_NOEXCEPT // true if no error
     {
-        return val_ == 0;
+        return !failed_;
     }
 
 #endif

include/boost/system/system_error.hpp

@@ -47,7 +47,7 @@ namespace boost
       virtual ~system_error() BOOST_NOEXCEPT_OR_NOTHROW {}
 
       error_code code() const BOOST_NOEXCEPT { return m_error_code; }
-      const char * what() const BOOST_NOEXCEPT_OR_NOTHROW;
+      const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE;
 
     private:
       error_code           m_error_code;

test/Jamfile.v2

@@ -61,7 +61,11 @@ system-run failed_constexpr_test.cpp ;
 # Quick (CI) test
 run quick.cpp ;
 
-run warnings_test.cpp : : : <warnings>all <warnings-as-errors>on <toolset>gcc:<cxxflags>-Wnon-virtual-dtor <toolset>clang:<cxxflags>-Wnon-virtual-dtor ;
+compile warnings_test.cpp
+  : <warnings>pedantic
+    <toolset>msvc:<warnings-as-errors>on
+    <toolset>gcc:<warnings-as-errors>on
+    <toolset>clang:<warnings-as-errors>on ;
 
 lib std_single_instance_lib1 : std_single_instance_1.cpp : <link>shared:<define>STD_SINGLE_INSTANCE_DYN_LINK ;
 lib std_single_instance_lib2 : std_single_instance_2.cpp : <link>shared:<define>STD_SINGLE_INSTANCE_DYN_LINK ;

test/failed_test.cpp

@@ -123,13 +123,13 @@ template<class Ec> void test()
 
     {
         Ec ec( 0, http_category() );
-        BOOST_TEST( ec.failed() );
+        TEST_FAILED( ec );
 
         ec.assign( 200, http_category() );
-        BOOST_TEST( !ec.failed() );
+        TEST_NOT_FAILED( ec );
 
         ec = Ec( 404, http_category() );
-        BOOST_TEST( ec.failed() );
+        TEST_FAILED( ec );
     }
 
 }

test/quick.cpp

@@ -8,6 +8,7 @@
 
 // See library home page at http://www.boost.org/libs/system
 
+#include <boost/system/system_error.hpp>
 #include <boost/system/error_code.hpp>
 #include <boost/core/lightweight_test.hpp>
 #include <cerrno>
@@ -32,5 +33,10 @@ int main()
 
     BOOST_TEST( bc == bn );
 
+    boost::system::system_error x( bc, "prefix" );
+
+    BOOST_TEST_EQ( x.code(), bc );
+    BOOST_TEST_EQ( std::string( x.what() ), "prefix: " + bc.message() );
+
     return boost::report_errors();
 }

test/warnings_test.cpp

@@ -8,12 +8,17 @@
 
 // See library home page at http://www.boost.org/libs/system
 
+#if defined(__GNUC__) && __GNUC__ >= 5 && __cplusplus >= 201103L
+# pragma GCC diagnostic error "-Wsuggest-override"
+#endif
+
 #include <boost/config.hpp>
 
 #if defined( BOOST_GCC ) && BOOST_GCC < 40600
 #pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
 #endif
 
+#include <boost/system/system_error.hpp>
 #include <boost/system/error_code.hpp>
 #include <boost/core/lightweight_test.hpp>
 #include <cerrno>
@@ -38,5 +43,10 @@ int main()
 
     BOOST_TEST( bc == bn );
 
+    boost::system::system_error x( bc, "prefix" );
+
+    BOOST_TEST_EQ( x.code(), bc );
+    BOOST_TEST_EQ( std::string( x.what() ), "prefix: " + bc.message() );
+
     return boost::report_errors();
 }