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 // The functions checked below come from <iostream> & friends 21 // UNSUPPORTED: libcpp-has-no-localization 22 23 #include <cassert> 24 #include <ios> 25 #include <istream> 26 #include <map> 27 #include <ostream> 28 #include <string> 29 #include <utility> 30 31 32 typedef std::ios_base& (FormatFlagFunction)(std::ios_base&); 33 typedef std::basic_ostream<char>& (OstreamManipFunction)(std::basic_ostream<char>&); 34 typedef std::basic_ostream<wchar_t>& (WOstreamManipFunction)(std::basic_ostream<wchar_t>&); 35 typedef std::basic_istream<char>& (IstreamManipFunction)(std::basic_istream<char>&); 36 typedef std::basic_istream<wchar_t>& (WIstreamManipFunction)(std::basic_istream<wchar_t>&); 37 38 extern FormatFlagFunction* get_formatflag_tu1(std::string); 39 extern FormatFlagFunction* get_formatflag_tu2(std::string); 40 41 extern OstreamManipFunction* get_ostreammanip_tu1(std::string); 42 extern OstreamManipFunction* get_ostreammanip_tu2(std::string); 43 extern WOstreamManipFunction* get_wostreammanip_tu1(std::string); 44 extern WOstreamManipFunction* get_wostreammanip_tu2(std::string); 45 46 extern IstreamManipFunction* get_istreammanip_tu1(std::string); 47 extern IstreamManipFunction* get_istreammanip_tu2(std::string); 48 extern WIstreamManipFunction* get_wistreammanip_tu1(std::string); 49 extern WIstreamManipFunction* get_wistreammanip_tu2(std::string); 50 51 #ifdef TU1 52 FormatFlagFunction* get_formatflag_tu1(std::string func) 53 #else 54 FormatFlagFunction* get_formatflag_tu2(std::string func) 55 #endif 56 { 57 std::map<std::string, FormatFlagFunction*> all_funcs; 58 59 // [fmtflags.manip] 60 all_funcs.insert(std::make_pair("boolalpha", &std::boolalpha)); 61 all_funcs.insert(std::make_pair("noboolalpha", &std::noboolalpha)); 62 all_funcs.insert(std::make_pair("showbase", &std::showbase)); 63 all_funcs.insert(std::make_pair("noshowbase", &std::noshowbase)); 64 all_funcs.insert(std::make_pair("showpoint", &std::showpoint)); 65 all_funcs.insert(std::make_pair("noshowpoint", &std::noshowpoint)); 66 all_funcs.insert(std::make_pair("showpos", &std::showpos)); 67 all_funcs.insert(std::make_pair("noshowpos", &std::noshowpos)); 68 all_funcs.insert(std::make_pair("skipws", &std::skipws)); 69 all_funcs.insert(std::make_pair("noskipws", &std::noskipws)); 70 all_funcs.insert(std::make_pair("uppercase", &std::uppercase)); 71 all_funcs.insert(std::make_pair("nouppercase", &std::nouppercase)); 72 all_funcs.insert(std::make_pair("unitbuf", &std::unitbuf)); 73 all_funcs.insert(std::make_pair("nounitbuf", &std::nounitbuf)); 74 75 // [adjustfield.manip] 76 all_funcs.insert(std::make_pair("internal", &std::internal)); 77 all_funcs.insert(std::make_pair("left", &std::left)); 78 all_funcs.insert(std::make_pair("right", &std::right)); 79 80 // [basefield.manip] 81 all_funcs.insert(std::make_pair("dec", &std::dec)); 82 all_funcs.insert(std::make_pair("hex", &std::hex)); 83 all_funcs.insert(std::make_pair("oct", &std::oct)); 84 85 // [floatfield.manip] 86 all_funcs.insert(std::make_pair("fixed", &std::fixed)); 87 all_funcs.insert(std::make_pair("scientific", &std::scientific)); 88 all_funcs.insert(std::make_pair("hexfloat", &std::hexfloat)); 89 all_funcs.insert(std::make_pair("defaultfloat", &std::defaultfloat)); 90 91 return all_funcs.at(func); 92 } 93 94 // [ostream.manip] (char) 95 #ifdef TU1 96 OstreamManipFunction* get_ostreammanip_tu1(std::string func) 97 #else 98 OstreamManipFunction* get_ostreammanip_tu2(std::string func) 99 #endif 100 { 101 std::map<std::string, OstreamManipFunction*> all_funcs; 102 typedef std::char_traits<char> Traits; 103 all_funcs.insert(std::make_pair("endl", &std::endl<char, Traits>)); 104 all_funcs.insert(std::make_pair("ends", &std::ends<char, Traits>)); 105 all_funcs.insert(std::make_pair("flush", &std::flush<char, Traits>)); 106 return all_funcs.at(func); 107 } 108 109 // [ostream.manip] (wchar_t) 110 #ifdef TU1 111 WOstreamManipFunction* get_wostreammanip_tu1(std::string func) 112 #else 113 WOstreamManipFunction* get_wostreammanip_tu2(std::string func) 114 #endif 115 { 116 std::map<std::string, WOstreamManipFunction*> all_funcs; 117 typedef std::char_traits<wchar_t> Traits; 118 all_funcs.insert(std::make_pair("endl", &std::endl<wchar_t, Traits>)); 119 all_funcs.insert(std::make_pair("ends", &std::ends<wchar_t, Traits>)); 120 all_funcs.insert(std::make_pair("flush", &std::flush<wchar_t, Traits>)); 121 return all_funcs.at(func); 122 } 123 124 // [istream.manip] (char) 125 #ifdef TU1 126 IstreamManipFunction* get_istreammanip_tu1(std::string func) 127 #else 128 IstreamManipFunction* get_istreammanip_tu2(std::string func) 129 #endif 130 { 131 std::map<std::string, IstreamManipFunction*> all_funcs; 132 typedef std::char_traits<char> Traits; 133 all_funcs.insert(std::make_pair("ws", &std::ws<char, Traits>)); 134 return all_funcs.at(func); 135 } 136 137 // [istream.manip] (wchar_t) 138 #ifdef TU1 139 WIstreamManipFunction* get_wistreammanip_tu1(std::string func) 140 #else 141 WIstreamManipFunction* get_wistreammanip_tu2(std::string func) 142 #endif 143 { 144 std::map<std::string, WIstreamManipFunction*> all_funcs; 145 typedef std::char_traits<wchar_t> Traits; 146 all_funcs.insert(std::make_pair("ws", &std::ws<wchar_t, Traits>)); 147 return all_funcs.at(func); 148 } 149 150 151 #ifdef TU2 152 int main(int, char**) { 153 assert(get_formatflag_tu1("boolalpha") == get_formatflag_tu2("boolalpha")); 154 assert(get_formatflag_tu1("noboolalpha") == get_formatflag_tu2("noboolalpha")); 155 assert(get_formatflag_tu1("showbase") == get_formatflag_tu2("showbase")); 156 assert(get_formatflag_tu1("noshowbase") == get_formatflag_tu2("noshowbase")); 157 assert(get_formatflag_tu1("showpoint") == get_formatflag_tu2("showpoint")); 158 assert(get_formatflag_tu1("noshowpoint") == get_formatflag_tu2("noshowpoint")); 159 assert(get_formatflag_tu1("showpos") == get_formatflag_tu2("showpos")); 160 assert(get_formatflag_tu1("noshowpos") == get_formatflag_tu2("noshowpos")); 161 assert(get_formatflag_tu1("skipws") == get_formatflag_tu2("skipws")); 162 assert(get_formatflag_tu1("noskipws") == get_formatflag_tu2("noskipws")); 163 assert(get_formatflag_tu1("uppercase") == get_formatflag_tu2("uppercase")); 164 assert(get_formatflag_tu1("nouppercase") == get_formatflag_tu2("nouppercase")); 165 assert(get_formatflag_tu1("unitbuf") == get_formatflag_tu2("unitbuf")); 166 assert(get_formatflag_tu1("nounitbuf") == get_formatflag_tu2("nounitbuf")); 167 assert(get_formatflag_tu1("internal") == get_formatflag_tu2("internal")); 168 assert(get_formatflag_tu1("left") == get_formatflag_tu2("left")); 169 assert(get_formatflag_tu1("right") == get_formatflag_tu2("right")); 170 assert(get_formatflag_tu1("dec") == get_formatflag_tu2("dec")); 171 assert(get_formatflag_tu1("hex") == get_formatflag_tu2("hex")); 172 assert(get_formatflag_tu1("oct") == get_formatflag_tu2("oct")); 173 assert(get_formatflag_tu1("fixed") == get_formatflag_tu2("fixed")); 174 assert(get_formatflag_tu1("scientific") == get_formatflag_tu2("scientific")); 175 assert(get_formatflag_tu1("hexfloat") == get_formatflag_tu2("hexfloat")); 176 assert(get_formatflag_tu1("defaultfloat") == get_formatflag_tu2("defaultfloat")); 177 178 assert(get_ostreammanip_tu1("endl") == get_ostreammanip_tu2("endl")); 179 assert(get_ostreammanip_tu1("ends") == get_ostreammanip_tu2("ends")); 180 assert(get_ostreammanip_tu1("flush") == get_ostreammanip_tu2("flush")); 181 182 assert(get_wostreammanip_tu1("endl") == get_wostreammanip_tu2("endl")); 183 assert(get_wostreammanip_tu1("ends") == get_wostreammanip_tu2("ends")); 184 assert(get_wostreammanip_tu1("flush") == get_wostreammanip_tu2("flush")); 185 186 assert(get_istreammanip_tu1("ws") == get_istreammanip_tu2("ws")); 187 188 assert(get_wistreammanip_tu1("ws") == get_wistreammanip_tu2("ws")); 189 190 return 0; 191 } 192 #endif 193