//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <locale>

// class num_get<charT, InputIterator>

// iter_type get(iter_type in, iter_type end, ios_base&,
//               ios_base::iostate& err, long& v) const;

#include <locale>
#include <ios>
#include <cassert>
#include <limits>
#include <streambuf>
#include "test_macros.h"
#include "test_iterators.h"

typedef std::num_get<char, input_iterator<const char*> > F;

class my_facet
    : public F
{
public:
    explicit my_facet(std::size_t refs = 0)
        : F(refs) {}
};

class my_numpunct
    : public std::numpunct<char>
{
public:
    my_numpunct() : std::numpunct<char>() {}

protected:
    virtual char_type do_thousands_sep() const {return '_';}
    virtual std::string do_grouping() const {return std::string("\1\2\3");}
};

int main(int, char**)
{
    const my_facet f(1);
    std::ios ios(0);
    long v = -1;
    const std::ios_base::fmtflags zf = static_cast<std::ios_base::fmtflags>(0);
    {
        const char str[] = "123";
        assert((ios.flags() & ios.basefield) == ios.dec);
        assert(ios.getloc().name() == "C");
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+3);
        assert(err == ios.goodbit);
        assert(v == 123);
    }
    {
        const char str[] = "-123";
        assert((ios.flags() & ios.basefield) == ios.dec);
        assert(ios.getloc().name() == "C");
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+4);
        assert(err == ios.goodbit);
        assert(v == -123);
    }
    {
        const char str[] = "123";
        oct(ios);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+3);
        assert(err == ios.goodbit);
        assert(v == 83);
    }
    {
        const char str[] = "123";
        hex(ios);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+3);
        assert(err == ios.goodbit);
        assert(v == 291);
    }
    {
        const char str[] = "0x123";
        hex(ios);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 291);
    }
    {
        const char str[] = "123";
        ios.setf(zf, ios.basefield);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 123);
    }
    {
        const char str[] = "0x123";
        ios.setf(zf, ios.basefield);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 291);
    }
    {
        const char str[] = "0123";
        ios.setf(zf, ios.basefield);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 83);
    }
    {
        const char str[] = "2-";
        ios.setf(zf, ios.basefield);
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+1);
        assert(err == ios.goodbit);
        assert(v == 2);
    }
    dec(ios);
    ios.imbue(std::locale(std::locale(), new my_numpunct));
    {
        v = -1;
        const char str[] = "123"; // no separators at all
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 123);
    }
    {
        v = -1;
        const char str[] = "+1";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "+1_";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "+_1";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "_+1";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "+1__";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "+_1_";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "_+1_";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "+__1";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "_+_1";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "__+1";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1);
    }
    {
        v = -1;
        const char str[] = "+1_2";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 12);
    }
    {
        v = -1;
        const char str[] = "+12_";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 12);
    }
    {
        v = -1;
        const char str[] = "+_12";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 12);
    }
    {
        v = -1;
        const char str[] = "+1__2";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 12);
    }
    {
        v = -1;
        const char str[] = "+12_3";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 123);
    }
    {
        v = -1;
        const char str[] = "+1_23";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 123);
    }
    {
        v = -1;
        const char str[] = "+1_23_4";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 1234);
    }
    {
        v = -1;
        const char str[] = "+123_4";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1234);
    }
    {
        v = -1;
        const char str[] = "+12_34";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1234);
    }
    {
        v = -1;
        const char str[] = "+12_34_5";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 12345);
    }
    {
        v = -1;
        const char str[] = "+123_45_6";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 123456);
    }
    {
        v = -1;
        const char str[] = "+1_23_45_6";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 123456);
    }
    {
        v = -1;
        const char str[] = "+1_234_56_7";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 1234567);
    }
    {
        v = -1;
        const char str[] = "+1_234_567_89_0";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 1234567890);
    }
    {
        v = -1;
        const char str[] = "-1_234_567_89_0";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == -1234567890);
    }
    {
        v = -1;
        const char str[] = "1_234_567_89_0";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.goodbit);
        assert(v == 1234567890);
    }
    {
        v = -1;
        const char str[] = "1234_567_89_0";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == 1234567890);
    }
    {
        v = -1;
        const char str[] = "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_"
                           "1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_1_2_3_4_5_6_7_8_9_0_";
        std::ios_base::iostate err = ios.goodbit;
        input_iterator<const char*> iter =
            f.get(input_iterator<const char*>(str),
                  input_iterator<const char*>(str+sizeof(str)),
                  ios, err, v);
        assert(iter.base() == str+sizeof(str)-1);
        assert(err == ios.failbit);
        assert(v == std::numeric_limits<long>::max());
    }

  return 0;
}