| 1 | #include <iostream>
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| 2 |
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| 3 | #include <boost/spirit/include/karma.hpp>
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| 4 | #include <boost/spirit/include/karma_format.hpp>
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| 5 | #include <boost/spirit/include/karma_real.hpp>
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| 6 |
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| 7 | namespace karma = boost::spirit::karma;
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| 8 |
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| 9 | template <typename T>
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| 10 | struct my_policy : karma::real_policies<T>
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| 11 | {
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| 12 | static unsigned int precision(T){return 3;}
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| 13 | static int floatfield(T){return std::ios_base::scientific;}
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| 14 | };
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| 15 |
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| 16 | int main()
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| 17 | {
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| 18 | karma::real_generator<float, my_policy<float> > my_real;
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| 19 |
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| 20 | // Expected output is "1.0e01 1.0e-02 1.0e04" or "1.0e+01 1.0e-02 1.0e+04",
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| 21 | // but result is "10.0e00 10.0e-03 10.0e03"
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| 22 | std::cout << karma::format(my_real << " " << my_real << " " << my_real, 9.9999, 9.9996e-3, 9.99951e+3) << std::endl;
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| 23 | }
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