1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // Make sure functions specified as being 'addressable' (their address can be 10 // taken in a well-defined manner) are indeed addressable. This notion was 11 // added by http://wg21.link/p0551. While it was technically only introduced 12 // in C++20, we test it in all standard modes because it's basic QOI to provide 13 // a consistent behavior for that across standard modes. 14 15 // RUN: %{cxx} %{flags} %{compile_flags} -c %s -o %t.tu1.o -DTU1 16 // RUN: %{cxx} %{flags} %{compile_flags} -c %s -o %t.tu2.o -DTU2 17 // RUN: %{cxx} %t.tu1.o %t.tu2.o %{flags} %{link_flags} -o %t.exe 18 // RUN: %{exec} %t.exe 19 20 #include <cassert> 21 #include <ios> 22 #include <istream> 23 #include <map> 24 #include <ostream> 25 #include <string> 26 #include <utility> 27 28 29 typedef std::ios_base& (FormatFlagFunction)(std::ios_base&); 30 typedef std::basic_ostream<char>& (OstreamManipFunction)(std::basic_ostream<char>&); 31 typedef std::basic_ostream<wchar_t>& (WOstreamManipFunction)(std::basic_ostream<wchar_t>&); 32 typedef std::basic_istream<char>& (IstreamManipFunction)(std::basic_istream<char>&); 33 typedef std::basic_istream<wchar_t>& (WIstreamManipFunction)(std::basic_istream<wchar_t>&); 34 35 extern FormatFlagFunction* get_formatflag_tu1(std::string); 36 extern FormatFlagFunction* get_formatflag_tu2(std::string); 37 38 extern OstreamManipFunction* get_ostreammanip_tu1(std::string); 39 extern OstreamManipFunction* get_ostreammanip_tu2(std::string); 40 extern WOstreamManipFunction* get_wostreammanip_tu1(std::string); 41 extern WOstreamManipFunction* get_wostreammanip_tu2(std::string); 42 43 extern IstreamManipFunction* get_istreammanip_tu1(std::string); 44 extern IstreamManipFunction* get_istreammanip_tu2(std::string); 45 extern WIstreamManipFunction* get_wistreammanip_tu1(std::string); 46 extern WIstreamManipFunction* get_wistreammanip_tu2(std::string); 47 48 #ifdef TU1 49 FormatFlagFunction* get_formatflag_tu1(std::string func) 50 #else 51 FormatFlagFunction* get_formatflag_tu2(std::string func) 52 #endif 53 { 54 std::map<std::string, FormatFlagFunction*> all_funcs; 55 56 // [fmtflags.manip] 57 all_funcs.insert(std::make_pair("boolalpha", &std::boolalpha)); 58 all_funcs.insert(std::make_pair("noboolalpha", &std::noboolalpha)); 59 all_funcs.insert(std::make_pair("showbase", &std::showbase)); 60 all_funcs.insert(std::make_pair("noshowbase", &std::noshowbase)); 61 all_funcs.insert(std::make_pair("showpoint", &std::showpoint)); 62 all_funcs.insert(std::make_pair("noshowpoint", &std::noshowpoint)); 63 all_funcs.insert(std::make_pair("showpos", &std::showpos)); 64 all_funcs.insert(std::make_pair("noshowpos", &std::noshowpos)); 65 all_funcs.insert(std::make_pair("skipws", &std::skipws)); 66 all_funcs.insert(std::make_pair("noskipws", &std::noskipws)); 67 all_funcs.insert(std::make_pair("uppercase", &std::uppercase)); 68 all_funcs.insert(std::make_pair("nouppercase", &std::nouppercase)); 69 all_funcs.insert(std::make_pair("unitbuf", &std::unitbuf)); 70 all_funcs.insert(std::make_pair("nounitbuf", &std::nounitbuf)); 71 72 // [adjustfield.manip] 73 all_funcs.insert(std::make_pair("internal", &std::internal)); 74 all_funcs.insert(std::make_pair("left", &std::left)); 75 all_funcs.insert(std::make_pair("right", &std::right)); 76 77 // [basefield.manip] 78 all_funcs.insert(std::make_pair("dec", &std::dec)); 79 all_funcs.insert(std::make_pair("hex", &std::hex)); 80 all_funcs.insert(std::make_pair("oct", &std::oct)); 81 82 // [floatfield.manip] 83 all_funcs.insert(std::make_pair("fixed", &std::fixed)); 84 all_funcs.insert(std::make_pair("scientific", &std::scientific)); 85 all_funcs.insert(std::make_pair("hexfloat", &std::hexfloat)); 86 all_funcs.insert(std::make_pair("defaultfloat", &std::defaultfloat)); 87 88 return all_funcs.at(func); 89 } 90 91 // [ostream.manip] (char) 92 #ifdef TU1 93 OstreamManipFunction* get_ostreammanip_tu1(std::string func) 94 #else 95 OstreamManipFunction* get_ostreammanip_tu2(std::string func) 96 #endif 97 { 98 std::map<std::string, OstreamManipFunction*> all_funcs; 99 typedef std::char_traits<char> Traits; 100 all_funcs.insert(std::make_pair("endl", &std::endl<char, Traits>)); 101 all_funcs.insert(std::make_pair("ends", &std::ends<char, Traits>)); 102 all_funcs.insert(std::make_pair("flush", &std::flush<char, Traits>)); 103 return all_funcs.at(func); 104 } 105 106 // [ostream.manip] (wchar_t) 107 #ifdef TU1 108 WOstreamManipFunction* get_wostreammanip_tu1(std::string func) 109 #else 110 WOstreamManipFunction* get_wostreammanip_tu2(std::string func) 111 #endif 112 { 113 std::map<std::string, WOstreamManipFunction*> all_funcs; 114 typedef std::char_traits<wchar_t> Traits; 115 all_funcs.insert(std::make_pair("endl", &std::endl<wchar_t, Traits>)); 116 all_funcs.insert(std::make_pair("ends", &std::ends<wchar_t, Traits>)); 117 all_funcs.insert(std::make_pair("flush", &std::flush<wchar_t, Traits>)); 118 return all_funcs.at(func); 119 } 120 121 // [istream.manip] (char) 122 #ifdef TU1 123 IstreamManipFunction* get_istreammanip_tu1(std::string func) 124 #else 125 IstreamManipFunction* get_istreammanip_tu2(std::string func) 126 #endif 127 { 128 std::map<std::string, IstreamManipFunction*> all_funcs; 129 typedef std::char_traits<char> Traits; 130 all_funcs.insert(std::make_pair("ws", &std::ws<char, Traits>)); 131 return all_funcs.at(func); 132 } 133 134 // [istream.manip] (wchar_t) 135 #ifdef TU1 136 WIstreamManipFunction* get_wistreammanip_tu1(std::string func) 137 #else 138 WIstreamManipFunction* get_wistreammanip_tu2(std::string func) 139 #endif 140 { 141 std::map<std::string, WIstreamManipFunction*> all_funcs; 142 typedef std::char_traits<wchar_t> Traits; 143 all_funcs.insert(std::make_pair("ws", &std::ws<wchar_t, Traits>)); 144 return all_funcs.at(func); 145 } 146 147 148 #ifdef TU2 149 int main(int, char**) { 150 assert(get_formatflag_tu1("boolalpha") == get_formatflag_tu2("boolalpha")); 151 assert(get_formatflag_tu1("noboolalpha") == get_formatflag_tu2("noboolalpha")); 152 assert(get_formatflag_tu1("showbase") == get_formatflag_tu2("showbase")); 153 assert(get_formatflag_tu1("noshowbase") == get_formatflag_tu2("noshowbase")); 154 assert(get_formatflag_tu1("showpoint") == get_formatflag_tu2("showpoint")); 155 assert(get_formatflag_tu1("noshowpoint") == get_formatflag_tu2("noshowpoint")); 156 assert(get_formatflag_tu1("showpos") == get_formatflag_tu2("showpos")); 157 assert(get_formatflag_tu1("noshowpos") == get_formatflag_tu2("noshowpos")); 158 assert(get_formatflag_tu1("skipws") == get_formatflag_tu2("skipws")); 159 assert(get_formatflag_tu1("noskipws") == get_formatflag_tu2("noskipws")); 160 assert(get_formatflag_tu1("uppercase") == get_formatflag_tu2("uppercase")); 161 assert(get_formatflag_tu1("nouppercase") == get_formatflag_tu2("nouppercase")); 162 assert(get_formatflag_tu1("unitbuf") == get_formatflag_tu2("unitbuf")); 163 assert(get_formatflag_tu1("nounitbuf") == get_formatflag_tu2("nounitbuf")); 164 assert(get_formatflag_tu1("internal") == get_formatflag_tu2("internal")); 165 assert(get_formatflag_tu1("left") == get_formatflag_tu2("left")); 166 assert(get_formatflag_tu1("right") == get_formatflag_tu2("right")); 167 assert(get_formatflag_tu1("dec") == get_formatflag_tu2("dec")); 168 assert(get_formatflag_tu1("hex") == get_formatflag_tu2("hex")); 169 assert(get_formatflag_tu1("oct") == get_formatflag_tu2("oct")); 170 assert(get_formatflag_tu1("fixed") == get_formatflag_tu2("fixed")); 171 assert(get_formatflag_tu1("scientific") == get_formatflag_tu2("scientific")); 172 assert(get_formatflag_tu1("hexfloat") == get_formatflag_tu2("hexfloat")); 173 assert(get_formatflag_tu1("defaultfloat") == get_formatflag_tu2("defaultfloat")); 174 175 assert(get_ostreammanip_tu1("endl") == get_ostreammanip_tu2("endl")); 176 assert(get_ostreammanip_tu1("ends") == get_ostreammanip_tu2("ends")); 177 assert(get_ostreammanip_tu1("flush") == get_ostreammanip_tu2("flush")); 178 179 assert(get_wostreammanip_tu1("endl") == get_wostreammanip_tu2("endl")); 180 assert(get_wostreammanip_tu1("ends") == get_wostreammanip_tu2("ends")); 181 assert(get_wostreammanip_tu1("flush") == get_wostreammanip_tu2("flush")); 182 183 assert(get_istreammanip_tu1("ws") == get_istreammanip_tu2("ws")); 184 185 assert(get_wistreammanip_tu1("ws") == get_wistreammanip_tu2("ws")); 186 187 return 0; 188 } 189 #endif 190