| formatter {RcppSpdlog} | R Documentation |
Simple Pass-Through Formatter to fmt::format()
Description
The C-level interface of R does not make it easy to pass ... arguments.
This helper function assumes it has already been called with format()
on each argument (as a wrapper can do) so it just spreads out the class to
fmt::format{} which, being C++, uses variadic templates to receive the
arguments. The main motivation for this function to able to format string as
use by the ‘fmtlib::fmt’ library included in ‘spdlog’ to write
similar debug strings in both R and C++. This function permits R calls with
multiple arguments of different types which (by being formatted on the R side)
are handled as strings (whereas C++ logging has access to the templating logic).
Usage
formatter(s, v)
Arguments
s |
A character variable with a format string for ‘fmtlib::fmt’ |
v |
A character vector with the logging string arguments. |
Value
A single (formatted) string
See Also
https://github.com/fmtlib/fmt