imbue.pass.cpp revision a90c6dd46005b2b14de3bb889a8d03bb34bd3256
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// locale imbue(const locale& loc); 15 16#include <ios> 17#include <streambuf> 18#include <cassert> 19 20#include "platform_support.h" // locale name macros 21 22struct testbuf 23 : public std::streambuf 24{ 25}; 26 27bool f1_called = false; 28bool f2_called = false; 29bool f3_called = false; 30 31void f1(std::ios_base::event ev, std::ios_base& stream, int index) 32{ 33 if (ev == std::ios_base::imbue_event) 34 { 35 assert(!f1_called); 36 assert( f2_called); 37 assert( f3_called); 38 assert(stream.getloc().name() == LOCALE_en_US_UTF_8); 39 assert(index == 4); 40 f1_called = true; 41 } 42} 43 44void f2(std::ios_base::event ev, std::ios_base& stream, int index) 45{ 46 if (ev == std::ios_base::imbue_event) 47 { 48 assert(!f1_called); 49 assert(!f2_called); 50 assert( f3_called); 51 assert(stream.getloc().name() == LOCALE_en_US_UTF_8); 52 assert(index == 5); 53 f2_called = true; 54 } 55} 56 57void f3(std::ios_base::event ev, std::ios_base& stream, int index) 58{ 59 if (ev == std::ios_base::imbue_event) 60 { 61 assert(!f1_called); 62 assert(!f2_called); 63 assert(!f3_called); 64 assert(stream.getloc().name() == LOCALE_en_US_UTF_8); 65 assert(index == 6); 66 f3_called = true; 67 } 68} 69 70int main() 71{ 72 { 73 std::ios ios(0); 74 ios.register_callback(f1, 4); 75 ios.register_callback(f2, 5); 76 ios.register_callback(f3, 6); 77 std::locale l = ios.imbue(std::locale(LOCALE_en_US_UTF_8)); 78 assert(l.name() == std::string("C")); 79 assert(ios.getloc().name() == std::string(LOCALE_en_US_UTF_8)); 80 assert(f1_called); 81 assert(f2_called); 82 assert(f3_called); 83 } 84 f1_called = false; 85 f2_called = false; 86 f3_called = false; 87 { 88 testbuf sb; 89 std::ios ios(&sb); 90 ios.register_callback(f1, 4); 91 ios.register_callback(f2, 5); 92 ios.register_callback(f3, 6); 93 std::locale l = ios.imbue(std::locale(LOCALE_en_US_UTF_8)); 94 assert(l.name() == std::string("C")); 95 assert(ios.getloc().name() == std::string(LOCALE_en_US_UTF_8)); 96 assert(sb.getloc().name() == std::string(LOCALE_en_US_UTF_8)); 97 assert(f1_called); 98 assert(f2_called); 99 assert(f3_called); 100 } 101} 102