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Trying to understand machine epsilon in to_string.cpp test on ppc64le arch.

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This commit is contained in:
Brad Bell 2022-02-01 06:16:04 -07:00
commit e586257ca0
1 changed files with 13 additions and 13 deletions
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26
cppad.spec
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@ -100,16 +100,14 @@ sed -i.bak CppAD-%{version}/test_more/debug_rel/CMakeLists.txt \
cat << EOF > temp.cpp
# include <iostream>
# include <limits>
template <class Float> void print_epsilon(const char* type_name)
{ Float epsilon = std::numeric_limits<Float>::epsilon();
std::cout << type_name << " epsilson = " << epsilon << "\n";
}
int main(void)
{ float float_eps = std::numeric_limits<float>::epsilon();
std::cout << "float_eps = " << float_eps << "\n";
//
float double_eps = std::numeric_limits<double>::epsilon();
std::cout << "double_eps = " << double_eps << "\n";
//
float long_double_eps = std::numeric_limits<long double>::epsilon();
std::cout << "long_double_eps = " << long_double_eps << "\n";
//
{ print_epsilon<float>("float");
print_epsilon<double>("double");
print_epsilon<long double>("long double");
return 0;
}
EOF
@ -160,14 +158,16 @@ cat << EOF > to_string.patch
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> if( std::numeric_limits<Integer>::min() != 0 )
> std::cout << "unsigned_integer: min != 0\n";
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> if( ! ok )
> { std::cout << "check/pi - 1.0 = " << check/pi - 1.0 << "\n";
> { std::cout << "check / pi - 1.0 = " << check / pi - 1.0;
> std::cout << ", eps = " << eps << "\n";
> print_error("floating", "pi", pi, check, eps);
> }
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> if( ! ok )
> { std::cout << "check/pi - 1.0 = " << check/pi - Base(1.0) << "\n";
> { std::cout << "check / pi - 1.0 = " << check /pi - Base(1.0);
> std::cout << ", eps = " << eps << "\n";
> print_error("ad_floating", "pi", pi, check, eps);
> }
EOF