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} %{flags} %{link_flags} %t.tu1.o %t.tu2.o -o %t.exe 18 // RUN: %{exec} %t.exe 19 20 #include <cassert> 21 #include <iostream> 22 #include <map> 23 #include <string> 24 #include <utility> 25 26 27 typedef std::ios_base& (FormatFlagFunction)(std::ios_base&); 28 typedef std::basic_ostream<char>& (OstreamManipFunction)(std::basic_ostream<char>&); 29 typedef std::basic_ostream<wchar_t>& (WOstreamManipFunction)(std::basic_ostream<wchar_t>&); 30 typedef std::basic_istream<char>& (IstreamManipFunction)(std::basic_istream<char>&); 31 typedef std::basic_istream<wchar_t>& (WIstreamManipFunction)(std::basic_istream<wchar_t>&); 32 33 extern FormatFlagFunction* get_formatflag_tu1(std::string); 34 extern FormatFlagFunction* get_formatflag_tu2(std::string); 35 36 extern OstreamManipFunction* get_ostreammanip_tu1(std::string); 37 extern OstreamManipFunction* get_ostreammanip_tu2(std::string); 38 extern WOstreamManipFunction* get_wostreammanip_tu1(std::string); 39 extern WOstreamManipFunction* get_wostreammanip_tu2(std::string); 40 41 extern IstreamManipFunction* get_istreammanip_tu1(std::string); 42 extern IstreamManipFunction* get_istreammanip_tu2(std::string); 43 extern WIstreamManipFunction* get_wistreammanip_tu1(std::string); 44 extern WIstreamManipFunction* get_wistreammanip_tu2(std::string); 45 46 #ifdef TU1 47 FormatFlagFunction* get_formatflag_tu1(std::string func) 48 #else 49 FormatFlagFunction* get_formatflag_tu2(std::string func) 50 #endif 51 { 52 std::map<std::string, FormatFlagFunction*> all_funcs; 53 54 // [fmtflags.manip] 55 all_funcs.insert(std::make_pair("boolalpha", &std::boolalpha)); 56 all_funcs.insert(std::make_pair("noboolalpha", &std::noboolalpha)); 57 all_funcs.insert(std::make_pair("showbase", &std::showbase)); 58 all_funcs.insert(std::make_pair("noshowbase", &std::noshowbase)); 59 all_funcs.insert(std::make_pair("showpoint", &std::showpoint)); 60 all_funcs.insert(std::make_pair("noshowpoint", &std::noshowpoint)); 61 all_funcs.insert(std::make_pair("showpos", &std::showpos)); 62 all_funcs.insert(std::make_pair("noshowpos", &std::noshowpos)); 63 all_funcs.insert(std::make_pair("skipws", &std::skipws)); 64 all_funcs.insert(std::make_pair("noskipws", &std::noskipws)); 65 all_funcs.insert(std::make_pair("uppercase", &std::uppercase)); 66 all_funcs.insert(std::make_pair("nouppercase", &std::nouppercase)); 67 all_funcs.insert(std::make_pair("unitbuf", &std::unitbuf)); 68 all_funcs.insert(std::make_pair("nounitbuf", &std::nounitbuf)); 69 70 // [adjustfield.manip] 71 all_funcs.insert(std::make_pair("internal", &std::internal)); 72 all_funcs.insert(std::make_pair("left", &std::left)); 73 all_funcs.insert(std::make_pair("right", &std::right)); 74 75 // [basefield.manip] 76 all_funcs.insert(std::make_pair("dec", &std::dec)); 77 all_funcs.insert(std::make_pair("hex", &std::hex)); 78 all_funcs.insert(std::make_pair("oct", &std::oct)); 79 80 // [floatfield.manip] 81 all_funcs.insert(std::make_pair("fixed", &std::fixed)); 82 all_funcs.insert(std::make_pair("scientific", &std::scientific)); 83 all_funcs.insert(std::make_pair("hexfloat", &std::hexfloat)); 84 all_funcs.insert(std::make_pair("defaultfloat", &std::defaultfloat)); 85 86 return all_funcs.at(func); 87 } 88 89 // [ostream.manip] (char) 90 #ifdef TU1 91 OstreamManipFunction* get_ostreammanip_tu1(std::string func) 92 #else 93 OstreamManipFunction* get_ostreammanip_tu2(std::string func) 94 #endif 95 { 96 std::map<std::string, OstreamManipFunction*> all_funcs; 97 typedef std::char_traits<char> Traits; 98 all_funcs.insert(std::make_pair("endl", &std::endl<char, Traits>)); 99 all_funcs.insert(std::make_pair("ends", &std::ends<char, Traits>)); 100 all_funcs.insert(std::make_pair("flush", &std::flush<char, Traits>)); 101 return all_funcs.at(func); 102 } 103 104 // [ostream.manip] (wchar_t) 105 #ifdef TU1 106 WOstreamManipFunction* get_wostreammanip_tu1(std::string func) 107 #else 108 WOstreamManipFunction* get_wostreammanip_tu2(std::string func) 109 #endif 110 { 111 std::map<std::string, WOstreamManipFunction*> all_funcs; 112 typedef std::char_traits<wchar_t> Traits; 113 all_funcs.insert(std::make_pair("endl", &std::endl<wchar_t, Traits>)); 114 all_funcs.insert(std::make_pair("ends", &std::ends<wchar_t, Traits>)); 115 all_funcs.insert(std::make_pair("flush", &std::flush<wchar_t, Traits>)); 116 return all_funcs.at(func); 117 } 118 119 // [istream.manip] (char) 120 #ifdef TU1 121 IstreamManipFunction* get_istreammanip_tu1(std::string func) 122 #else 123 IstreamManipFunction* get_istreammanip_tu2(std::string func) 124 #endif 125 { 126 std::map<std::string, IstreamManipFunction*> all_funcs; 127 typedef std::char_traits<char> Traits; 128 all_funcs.insert(std::make_pair("ws", &std::ws<char, Traits>)); 129 return all_funcs.at(func); 130 } 131 132 // [istream.manip] (wchar_t) 133 #ifdef TU1 134 WIstreamManipFunction* get_wistreammanip_tu1(std::string func) 135 #else 136 WIstreamManipFunction* get_wistreammanip_tu2(std::string func) 137 #endif 138 { 139 std::map<std::string, WIstreamManipFunction*> all_funcs; 140 typedef std::char_traits<wchar_t> Traits; 141 all_funcs.insert(std::make_pair("ws", &std::ws<wchar_t, Traits>)); 142 return all_funcs.at(func); 143 } 144 145 146 #ifdef TU2 147 int main() { 148 assert(get_formatflag_tu1("boolalpha") == get_formatflag_tu2("boolalpha")); 149 assert(get_formatflag_tu1("noboolalpha") == get_formatflag_tu2("noboolalpha")); 150 assert(get_formatflag_tu1("showbase") == get_formatflag_tu2("showbase")); 151 assert(get_formatflag_tu1("noshowbase") == get_formatflag_tu2("noshowbase")); 152 assert(get_formatflag_tu1("showpoint") == get_formatflag_tu2("showpoint")); 153 assert(get_formatflag_tu1("noshowpoint") == get_formatflag_tu2("noshowpoint")); 154 assert(get_formatflag_tu1("showpos") == get_formatflag_tu2("showpos")); 155 assert(get_formatflag_tu1("noshowpos") == get_formatflag_tu2("noshowpos")); 156 assert(get_formatflag_tu1("skipws") == get_formatflag_tu2("skipws")); 157 assert(get_formatflag_tu1("noskipws") == get_formatflag_tu2("noskipws")); 158 assert(get_formatflag_tu1("uppercase") == get_formatflag_tu2("uppercase")); 159 assert(get_formatflag_tu1("nouppercase") == get_formatflag_tu2("nouppercase")); 160 assert(get_formatflag_tu1("unitbuf") == get_formatflag_tu2("unitbuf")); 161 assert(get_formatflag_tu1("nounitbuf") == get_formatflag_tu2("nounitbuf")); 162 assert(get_formatflag_tu1("internal") == get_formatflag_tu2("internal")); 163 assert(get_formatflag_tu1("left") == get_formatflag_tu2("left")); 164 assert(get_formatflag_tu1("right") == get_formatflag_tu2("right")); 165 assert(get_formatflag_tu1("dec") == get_formatflag_tu2("dec")); 166 assert(get_formatflag_tu1("hex") == get_formatflag_tu2("hex")); 167 assert(get_formatflag_tu1("oct") == get_formatflag_tu2("oct")); 168 assert(get_formatflag_tu1("fixed") == get_formatflag_tu2("fixed")); 169 assert(get_formatflag_tu1("scientific") == get_formatflag_tu2("scientific")); 170 assert(get_formatflag_tu1("hexfloat") == get_formatflag_tu2("hexfloat")); 171 assert(get_formatflag_tu1("defaultfloat") == get_formatflag_tu2("defaultfloat")); 172 173 assert(get_ostreammanip_tu1("endl") == get_ostreammanip_tu2("endl")); 174 assert(get_ostreammanip_tu1("ends") == get_ostreammanip_tu2("ends")); 175 assert(get_ostreammanip_tu1("flush") == get_ostreammanip_tu2("flush")); 176 177 assert(get_wostreammanip_tu1("endl") == get_wostreammanip_tu2("endl")); 178 assert(get_wostreammanip_tu1("ends") == get_wostreammanip_tu2("ends")); 179 assert(get_wostreammanip_tu1("flush") == get_wostreammanip_tu2("flush")); 180 181 assert(get_istreammanip_tu1("ws") == get_istreammanip_tu2("ws")); 182 183 assert(get_wistreammanip_tu1("ws") == get_wistreammanip_tu2("ws")); 184 } 185 #endif 186