Ticket #12209: inf_test.cpp
File inf_test.cpp, 449 bytes (added by , 6 years ago) |
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1 | #include <iostream> |
2 | #include <boost/multiprecision/cpp_bin_float.hpp> |
3 | |
4 | |
5 | typedef boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_float<128, boost::multiprecision::backends::digit_base_2> > ext_float_t; |
6 | |
7 | int main(int, char**) { |
8 | ext_float_t a("1e500000000"); |
9 | ext_float_t neginf = (-a)*a; // -inf |
10 | ext_float_t x = -42; |
11 | |
12 | std::cout |
13 | << x << " - " << neginf << " = " << x-neginf << "\n" |
14 | ; |
15 | |
16 | return 0; |
17 | } |