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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <ios>
     11 
     12 // template <class charT, class traits> class basic_ios
     13 
     14 // void move(basic_ios&& rhs);
     15 
     16 #include <ios>
     17 #include <streambuf>
     18 #include <cassert>
     19 
     20 #include "platform_support.h" // locale name macros
     21 
     22 struct testbuf
     23     : public std::streambuf
     24 {
     25 };
     26 
     27 struct testios
     28     : public std::ios
     29 {
     30     testios(std::streambuf* p) : std::ios(p) {}
     31     void swap(std::ios& x) {std::ios::swap(x);}
     32 };
     33 
     34 bool f1_called = false;
     35 bool f2_called = false;
     36 
     37 bool g1_called = false;
     38 bool g2_called = false;
     39 bool g3_called = false;
     40 
     41 void f1(std::ios_base::event ev, std::ios_base& stream, int index)
     42 {
     43     assert(index == 4);
     44     f1_called = true;
     45 }
     46 
     47 void f2(std::ios_base::event ev, std::ios_base& stream, int index)
     48 {
     49     assert(index == 5);
     50     f2_called = true;
     51 }
     52 
     53 void g1(std::ios_base::event ev, std::ios_base& stream, int index)
     54 {
     55     assert(index == 7);
     56     g1_called = true;
     57 }
     58 
     59 void g2(std::ios_base::event ev, std::ios_base& stream, int index)
     60 {
     61     assert(index == 8);
     62     g2_called = true;
     63 }
     64 
     65 void g3(std::ios_base::event ev, std::ios_base& stream, int index)
     66 {
     67     assert(index == 9);
     68     g3_called = true;
     69 }
     70 
     71 int main()
     72 {
     73     testbuf sb1;
     74     testios ios1(&sb1);
     75     ios1.flags(std::ios::boolalpha | std::ios::dec | std::ios::fixed);
     76     ios1.precision(1);
     77     ios1.width(11);
     78     ios1.imbue(std::locale(LOCALE_en_US_UTF_8));
     79     ios1.exceptions(std::ios::failbit);
     80     ios1.setstate(std::ios::eofbit);
     81     ios1.register_callback(f1, 4);
     82     ios1.register_callback(f2, 5);
     83     ios1.iword(0) = 1;
     84     ios1.iword(1) = 2;
     85     ios1.iword(2) = 3;
     86     char c1, c2, c3;
     87     ios1.pword(0) = &c1;
     88     ios1.pword(1) = &c2;
     89     ios1.pword(2) = &c3;
     90     ios1.tie((std::ostream*)1);
     91     ios1.fill('1');
     92 
     93     testbuf sb2;
     94     testios ios2(&sb2);
     95     ios2.flags(std::ios::showpoint | std::ios::uppercase);
     96     ios2.precision(2);
     97     ios2.width(12);
     98     ios2.imbue(std::locale(LOCALE_fr_FR_UTF_8));
     99     ios2.exceptions(std::ios::eofbit);
    100     ios2.setstate(std::ios::goodbit);
    101     ios2.register_callback(g1, 7);
    102     ios2.register_callback(g2, 8);
    103     ios2.register_callback(g3, 9);
    104     ios2.iword(0) = 4;
    105     ios2.iword(1) = 5;
    106     ios2.iword(2) = 6;
    107     ios2.iword(3) = 7;
    108     ios2.iword(4) = 8;
    109     ios2.iword(5) = 9;
    110     char d1, d2;
    111     ios2.pword(0) = &d1;
    112     ios2.pword(1) = &d2;
    113     ios2.tie((std::ostream*)2);
    114     ios2.fill('2');
    115 
    116     ios1.swap(ios2);
    117 
    118     assert(ios1.rdstate() == std::ios::goodbit);
    119     assert(ios1.rdbuf() == &sb1);
    120     assert(ios1.flags() == (std::ios::showpoint | std::ios::uppercase));
    121     assert(ios1.precision() == 2);
    122     assert(ios1.width() == 12);
    123     assert(ios1.getloc().name() == LOCALE_fr_FR_UTF_8);
    124     assert(ios1.exceptions() == std::ios::eofbit);
    125     assert(!f1_called);
    126     assert(!f2_called);
    127     assert(!g1_called);
    128     assert(!g2_called);
    129     assert(!g3_called);
    130     assert(ios1.iword(0) == 4);
    131     assert(ios1.iword(1) == 5);
    132     assert(ios1.iword(2) == 6);
    133     assert(ios1.iword(3) == 7);
    134     assert(ios1.iword(4) == 8);
    135     assert(ios1.iword(5) == 9);
    136     assert(ios1.pword(0) == &d1);
    137     assert(ios1.pword(1) == &d2);
    138     assert(ios1.tie() == (std::ostream*)2);
    139     assert(ios1.fill() == '2');
    140     ios1.imbue(std::locale("C"));
    141     assert(!f1_called);
    142     assert(!f2_called);
    143     assert(g1_called);
    144     assert(g2_called);
    145     assert(g3_called);
    146 
    147     assert(ios2.rdstate() == std::ios::eofbit);
    148     assert(ios2.rdbuf() == &sb2);
    149     assert(ios2.flags() == (std::ios::boolalpha | std::ios::dec | std::ios::fixed));
    150     assert(ios2.precision() == 1);
    151     assert(ios2.width() == 11);
    152     assert(ios2.getloc().name() == LOCALE_en_US_UTF_8);
    153     assert(ios2.exceptions() == std::ios::failbit);
    154     assert(ios2.iword(0) == 1);
    155     assert(ios2.iword(1) == 2);
    156     assert(ios2.iword(2) == 3);
    157     assert(ios2.pword(0) == &c1);
    158     assert(ios2.pword(1) == &c2);
    159     assert(ios2.pword(2) == &c3);
    160     assert(ios2.tie() == (std::ostream*)1);
    161     assert(ios2.fill() == '1');
    162     ios2.imbue(std::locale("C"));
    163     assert(f1_called);
    164     assert(f2_called);
    165 }
    166