libcxx/test/std/input.output/iostreams.base/ios/basic.ios.members/move.pass.cpp

   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 // REQUIRES: locale.fr_FR.UTF-8
  10
  11 // <ios>
  12
  13 // template <class charT, class traits> class basic_ios
  14
  15 // void move(basic_ios&& rhs);
  16
  17 #include <ios>
  18 #include <streambuf>
  19 #include <cassert>
  20
  21 #include "test_macros.h"
  22 #include "platform_support.h" // locale name macros
  23
  24 struct testbuf
  25     : public std::streambuf
  26 {
  27 };
  28
  29 struct testios
  30     : public std::ios
  31 {
  32     testios() {}
  33     testios(std::streambuf* p) : std::ios(p) {}
  34     void move(std::ios& x) {std::ios::move(x);}
  35 };
  36
  37 bool f1_called = false;
  38 bool f2_called = false;
  39
  40 bool g1_called = false;
  41 bool g2_called = false;
  42 bool g3_called = false;
  43
  44 void f1(std::ios_base::event, std::ios_base&, int)
  45 {
  46     f1_called = true;
  47 }
  48
  49 void f2(std::ios_base::event, std::ios_base&, int)
  50 {
  51     f2_called = true;
  52 }
  53
  54 void g1(std::ios_base::event ev, std::ios_base&, int index)
  55 {
  56     if (ev == std::ios_base::imbue_event)
  57     {
  58         assert(index == 7);
  59         g1_called = true;
  60     }
  61 }
  62
  63 void g2(std::ios_base::event ev, std::ios_base&, int index)
  64 {
  65     if (ev == std::ios_base::imbue_event)
  66     {
  67         assert(index == 8);
  68         g2_called = true;
  69     }
  70 }
  71
  72 void g3(std::ios_base::event ev, std::ios_base&, int index)
  73 {
  74     if (ev == std::ios_base::imbue_event)
  75     {
  76         assert(index == 9);
  77         g3_called = true;
  78     }
  79 }
  80
  81 int main(int, char**)
  82 {
  83     testios ios1;
  84     testbuf sb2;
  85     std::ios ios2(&sb2);
  86     ios2.flags(std::ios::showpoint | std::ios::uppercase);
  87     ios2.precision(2);
  88     ios2.width(12);
  89     ios2.imbue(std::locale(LOCALE_fr_FR_UTF_8));
  90     ios2.exceptions(std::ios::eofbit);
  91     ios2.setstate(std::ios::goodbit);
  92     ios2.register_callback(g1, 7);
  93     ios2.register_callback(g2, 8);
  94     ios2.register_callback(g3, 9);
  95     ios2.iword(0) = 4;
  96     ios2.iword(1) = 5;
  97     ios2.iword(2) = 6;
  98     ios2.iword(3) = 7;
  99     ios2.iword(4) = 8;
 100     ios2.iword(5) = 9;
 101     char d1, d2;
 102     ios2.pword(0) = &d1;
 103     ios2.pword(1) = &d2;
 104     ios2.tie((std::ostream*)2);
 105     ios2.fill('2');
 106
 107     ios1.move(ios2);
 108
 109     assert(ios1.rdstate() == std::ios::goodbit);
 110     assert(ios1.rdbuf() == 0);
 111     assert(ios1.flags() == (std::ios::showpoint | std::ios::uppercase));
 112     assert(ios1.precision() == 2);
 113     assert(ios1.width() == 12);
 114     assert(ios1.getloc().name() == LOCALE_fr_FR_UTF_8);
 115     assert(ios1.exceptions() == std::ios::eofbit);
 116     assert(!f1_called);
 117     assert(!f2_called);
 118     assert(!g1_called);
 119     assert(!g2_called);
 120     assert(!g3_called);
 121     assert(ios1.iword(0) == 4);
 122     assert(ios1.iword(1) == 5);
 123     assert(ios1.iword(2) == 6);
 124     assert(ios1.iword(3) == 7);
 125     assert(ios1.iword(4) == 8);
 126     assert(ios1.iword(5) == 9);
 127     assert(ios1.pword(0) == &d1);
 128     assert(ios1.pword(1) == &d2);
 129     assert(ios1.tie() == (std::ostream*)2);
 130     assert(ios1.fill() == '2');
 131     ios1.imbue(std::locale("C"));
 132     assert(!f1_called);
 133     assert(!f2_called);
 134     assert(g1_called);
 135     assert(g2_called);
 136     assert(g3_called);
 137
 138     assert(ios2.rdbuf() == &sb2);
 139     assert(ios2.tie() == 0);
 140
 141   return 0;
 142 }