libcxx/test/std/re/re.traits/value.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 // <regex>
  10
  11 // template <class charT> struct regex_traits;
  12
  13 // int value(charT ch, int radix) const;
  14
  15 #include <regex>
  16 #include <cassert>
  17 #include "test_macros.h"
  18
  19 int main(int, char**)
  20 {
  21     {
  22         std::regex_traits<char> t;
  23
  24         for (char c = 0; c < '0'; ++c)
  25         {
  26             assert(t.value(c, 8) == -1);
  27             assert(t.value(c, 10) == -1);
  28             assert(t.value(c, 16) == -1);
  29         }
  30         for (char c = '0'; c < '8'; ++c)
  31         {
  32             assert(t.value(c, 8) == c - '0');
  33             assert(t.value(c, 10) == c - '0');
  34             assert(t.value(c, 16) == c - '0');
  35         }
  36         for (char c = '8'; c < ':'; ++c)
  37         {
  38             assert(t.value(c, 8) == -1);
  39             assert(t.value(c, 10) == c - '0');
  40             assert(t.value(c, 16) == c - '0');
  41         }
  42         for (char c = ':'; c < 'A'; ++c)
  43         {
  44             assert(t.value(c, 8) == -1);
  45             assert(t.value(c, 10) == -1);
  46             assert(t.value(c, 16) == -1);
  47         }
  48         for (char c = 'A'; c < 'G'; ++c)
  49         {
  50             assert(t.value(c, 8) == -1);
  51             assert(t.value(c, 10) == -1);
  52             assert(t.value(c, 16) == c - 'A' +10);
  53         }
  54         for (char c = 'G'; c < 'a'; ++c)
  55         {
  56             assert(t.value(c, 8) == -1);
  57             assert(t.value(c, 10) == -1);
  58             assert(t.value(c, 16) == -1);
  59         }
  60         for (char c = 'a'; c < 'g'; ++c)
  61         {
  62             assert(t.value(c, 8) == -1);
  63             assert(t.value(c, 10) == -1);
  64             assert(t.value(c, 16) == c - 'a' +10);
  65         }
  66         for (int c = 'g'; c < 256; ++c)
  67         {
  68             assert(t.value(char(c), 8) == -1);
  69             assert(t.value(char(c), 10) == -1);
  70             assert(t.value(char(c), 16) == -1);
  71         }
  72     }
  73     {
  74         std::regex_traits<wchar_t> t;
  75
  76         for (wchar_t c = 0; c < '0'; ++c)
  77         {
  78             assert(t.value(c, 8) == -1);
  79             assert(t.value(c, 10) == -1);
  80             assert(t.value(c, 16) == -1);
  81         }
  82         for (wchar_t c = '0'; c < '8'; ++c)
  83         {
  84             assert(t.value(c, 8) ==  static_cast<int>(c - '0'));
  85             assert(t.value(c, 10) == static_cast<int>(c - '0'));
  86             assert(t.value(c, 16) == static_cast<int>(c - '0'));
  87         }
  88         for (wchar_t c = '8'; c < ':'; ++c)
  89         {
  90             assert(t.value(c, 8) == -1);
  91             assert(t.value(c, 10) == static_cast<int>(c - '0'));
  92             assert(t.value(c, 16) == static_cast<int>(c - '0'));
  93         }
  94         for (wchar_t c = ':'; c < 'A'; ++c)
  95         {
  96             assert(t.value(c, 8) == -1);
  97             assert(t.value(c, 10) == -1);
  98             assert(t.value(c, 16) == -1);
  99         }
 100         for (wchar_t c = 'A'; c < 'G'; ++c)
 101         {
 102             assert(t.value(c, 8) == -1);
 103             assert(t.value(c, 10) == -1);
 104             assert(t.value(c, 16) == static_cast<int>(c - 'A' +10));
 105         }
 106         for (wchar_t c = 'G'; c < 'a'; ++c)
 107         {
 108             assert(t.value(c, 8) == -1);
 109             assert(t.value(c, 10) == -1);
 110             assert(t.value(c, 16) == -1);
 111         }
 112         for (wchar_t c = 'a'; c < 'g'; ++c)
 113         {
 114             assert(t.value(c, 8) == -1);
 115             assert(t.value(c, 10) == -1);
 116             assert(t.value(c, 16) == static_cast<int>(c - 'a' +10));
 117         }
 118         for (wchar_t c = 'g'; c < 0xFFFF; ++c)
 119         {
 120             assert(t.value(c, 8) == -1);
 121             assert(t.value(c, 10) == -1);
 122             assert(t.value(c, 16) == -1);
 123         }
 124     }
 125
 126   return 0;
 127 }