libcxx/test/std/strings/string.conversions/stoul.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 // <string>
  10
  11 // unsigned long stoul(const string& str, size_t *idx = 0, int base = 10);
  12 // unsigned long stoul(const wstring& str, size_t *idx = 0, int base = 10);
  13
  14 #include <string>
  15 #include <cassert>
  16 #include <stdexcept>
  17
  18 #include "test_macros.h"
  19
  20 int main(int, char**) {
  21   assert(std::stoul("0") == 0);
  22   assert(std::stoul("-0") == 0);
  23   assert(std::stoul(" 10") == 10);
  24   {
  25     std::size_t idx = 0;
  26     assert(std::stoul("10g", &idx, 16) == 16);
  27     assert(idx == 2);
  28   }
  29 #ifndef TEST_HAS_NO_EXCEPTIONS
  30   {
  31     std::size_t idx = 0;
  32     try {
  33       (void)std::stoul("", &idx);
  34       assert(false);
  35     } catch (const std::invalid_argument&) {
  36       assert(idx == 0);
  37     }
  38   }
  39   {
  40     std::size_t idx = 0;
  41     try {
  42       (void)std::stoul("  - 8", &idx);
  43       assert(false);
  44     } catch (const std::invalid_argument&) {
  45       assert(idx == 0);
  46     }
  47   }
  48   {
  49     std::size_t idx = 0;
  50     try {
  51       (void)std::stoul("a1", &idx);
  52       assert(false);
  53     } catch (const std::invalid_argument&) {
  54       assert(idx == 0);
  55     }
  56   }
  57   {
  58     std::size_t idx = 0;
  59     try {
  60       // LWG#2009 and PR14919
  61       (void)std::stoul("9999999999999999999999999999999999999999999999999", &idx);
  62       assert(false);
  63     } catch (const std::out_of_range&) {
  64       assert(idx == 0);
  65     }
  66   }
  67 #endif // TEST_HAS_NO_EXCEPTIONS
  68
  69 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  70   assert(std::stoul(L"0") == 0);
  71   assert(std::stoul(L"-0") == 0);
  72   assert(std::stoul(L" 10") == 10);
  73   {
  74     std::size_t idx = 0;
  75     assert(std::stoul(L"10g", &idx, 16) == 16);
  76     assert(idx == 2);
  77   }
  78 #  ifndef TEST_HAS_NO_EXCEPTIONS
  79   {
  80     std::size_t idx = 0;
  81     try {
  82       (void)std::stoul(L"", &idx);
  83       assert(false);
  84     } catch (const std::invalid_argument&) {
  85       assert(idx == 0);
  86     }
  87   }
  88   {
  89     std::size_t idx = 0;
  90     try {
  91       (void)std::stoul(L"  - 8", &idx);
  92       assert(false);
  93     } catch (const std::invalid_argument&) {
  94       assert(idx == 0);
  95     }
  96   }
  97   {
  98     std::size_t idx = 0;
  99     try {
 100       (void)std::stoul(L"a1", &idx);
 101       assert(false);
 102     } catch (const std::invalid_argument&) {
 103       assert(idx == 0);
 104     }
 105   }
 106   {
 107     std::size_t idx = 0;
 108     try {
 109       // LWG#2009 and PR14919
 110       (void)std::stoul(L"9999999999999999999999999999999999999999999999999", &idx);
 111       assert(false);
 112     } catch (const std::out_of_range&) {
 113       assert(idx == 0);
 114     }
 115   }
 116 #  endif // TEST_HAS_NO_EXCEPTIONS
 117 #endif   // TEST_HAS_NO_WIDE_CHARACTERS
 118
 119   return 0;
 120 }