Add dragonbox to compute the required precision to print floating point
numbers. This avoids uglification of floating point numbers that
happen by default via std::stringstream.
Numbers like 34.34 used to be converted to '34.340000000000003' as strings.
With this version they will be converted to the string '34.34'.
This fixes issue https://github.com/jbeder/yaml-cpp/issues/1289
This reverts commit 6262201182.
in 62622011, we wanted address the needs to use the `string_view`
converter in C++98, but that requirement was based on wrong
preconditions. `std::string_view` was introduced in C++17, and
popular standard libraries like libstdc++ and libc++ both provide
`std::string_view` when the source is built with C++17.
furthermore 62622011 is buggy. because it uses `<version>` to tell
the feature set provided by the standard library. but `<version>`
is a part of C++20. so this defeats the purpose of the change of
62622011.
Fixes#1223
This is done by adding a second, defaulted, template parameter that can
be used in conjunction of std::enable_if
An example of usage is added to the tutorial
- Don't eagerly convert key to std::string
- Make const char* keys streamable when exception is thrown
- Don't create a temporary string when comparing a const char* key
* partially fix clang compilation
Missing header and mistaken algorithm usage.
Also removed it name from range loops. It's not correct.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
* run through clang's -Wrange-loop-analysis
Some range loops should not use references as they need to copy.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
* manual range loop conversions
Signed-off-by: Rosen Penev <rosenp@gmail.com>
This happens whenever in a macro you use some "if" block, and don't use curly braces {},
as the macro is expanded on a single line, not on several lines. So just add the missing
curly braces to please gcc.
In file included from /remote/users/mlamesch/CloneFromPlatinum/yamlcpp/osp/Yamlcpp/18-0-0-5/include/yaml-cpp/yaml.h:18,
from src/TestYaml.cpp:2:
/remote/users/mlamesch/CloneFromPlatinum/yamlcpp/osp/Yamlcpp/18-0-0-5/include/yaml-cpp/node/convert.h: In static member function static bool YAML::convert<int>::decode(const YAML::Node&, int&):
/remote/users/mlamesch/CloneFromPlatinum/yamlcpp/osp/Yamlcpp/18-0-0-5/include/yaml-cpp/node/convert.h:139:1: error: this if clause does not guard... [-Werror=misleading-indentation]
YAML_DEFINE_CONVERT_STREAMABLE_SIGNED(int);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The issue is that numbers like
2.01 or 3.01 can not be precisely represented with binary floating point
numbers.
This replaces all occurrences of 'std::numeric_limits<T>::digits10 + 1' with
'std::numeric_limits<T>::max_digits10'.
Background:
Using 'std::numeric_limits<T>::digits10 + 1' is not precise enough.
Converting a 'float' into a 'string' and back to a 'float' will not always
produce the original 'float' value. To guarantee that the 'string'
representation has sufficient precision the value
'std::numeric_limits<T>::max_digits10' has to be used.
