c++ type information
demangle gives the demangled type, sizeof its size (in bytes).
demangle(type = "int", ...)
sizeof(type = "int", ...)type |
The type we want to demangle |
... |
Further argument for |
The following function is compiled and invoked:
SEXP demangle_this_type(){
typedef
return wrap( DEMANGLE(type) ) ;
}
SEXP sizeof_this_type(){
typedef
return wrap( sizeof(type) ) ;
}DEMANGLE is a macro in Rcpp that does the work.
The demangled type, as a string.
We only know how to demangle with gcc. If you know how to demangle types with your compiler, let us know.
Romain Francois <romain@r-enthusiasts.com>
See this chapter from the GNU C++ library manual.
cppFunction is used to compile the function demangle creates.
## Not run:
demangle( "int64_t" )
demangle( "uint64_t" )
demangle( "NumericVector" )
demangle( "std::map<std::string,double>" )
sizeof( "long" )
sizeof( "long long" )
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.