ceph/src/boost/libs/lexical_cast/test/no_exceptions_test.cpp

   1 //  Unit test for boost::lexical_cast.
   2 //
   3 //  See http://www.boost.org for most recent version, including documentation.
   4 //
   5 //  Copyright Antony Polukhin, 2012-2022.
   6 //
   7 //  Distributed under the Boost
   8 //  Software License, Version 1.0. (See accompanying file
   9 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
  10
  11 #include <boost/config.hpp>
  12
  13 #if defined(__INTEL_COMPILER)
  14 #pragma warning(disable: 193 383 488 981 1418 1419)
  15 #elif defined(BOOST_MSVC)
  16 #pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
  17 #endif
  18
  19 #include <boost/lexical_cast.hpp>
  20 #include <boost/core/lightweight_test.hpp>
  21 #include <boost/range/iterator_range.hpp>
  22
  23 #include <cstdlib>
  24
  25 #include "escape_struct.hpp"
  26
  27 #ifndef BOOST_NO_EXCEPTIONS
  28 #error "This test must be compiled with -DBOOST_NO_EXCEPTIONS"
  29 #endif
  30
  31 namespace boost {
  32
  33 BOOST_NORETURN void throw_exception(std::exception const & ) {
  34     static int state = 0;
  35     ++ state;
  36
  37     EscapeStruct v("");
  38     switch(state) {
  39     case 1:
  40         lexical_cast<char>(v); // should call boost::throw_exception
  41         std::exit(1);
  42     case 2:
  43         lexical_cast<unsigned char>(v); // should call boost::throw_exception
  44         std::exit(2);
  45     }
  46     std::exit(boost::report_errors());
  47 }
  48
  49 }
  50
  51 void test_exceptions_off() {
  52     using namespace boost;
  53     EscapeStruct v("");
  54
  55     v = lexical_cast<EscapeStruct>(100);
  56     BOOST_TEST_EQ(lexical_cast<int>(v), 100);
  57     BOOST_TEST_EQ(lexical_cast<unsigned int>(v), 100u);
  58
  59     v = lexical_cast<EscapeStruct>(0.0);
  60     BOOST_TEST_EQ(lexical_cast<double>(v), 0.0);
  61
  62     BOOST_TEST_EQ(lexical_cast<short>(100), 100);
  63     BOOST_TEST_EQ(lexical_cast<float>(0.0), 0.0);
  64
  65     lexical_cast<short>(700000); // should call boost::throw_exception
  66     BOOST_TEST(false);
  67 }
  68
  69 int main() {
  70     test_exceptions_off();
  71
  72     return boost::report_errors();
  73 }
  74