Hi, I am trying to implement an algorithm in C which will be called via the .Call() interface.
While reading the 'Writing R Extension' manual, I stumbled upon the R_alloc() function for allocating storage for C objects. The manual says it should be used to allocate storage if an C object is needed/created while manipulating R objects within a function called via the .Call() interface. Because none of the examples in the manual uses R_alloc(), I wonder when it is needed? If I create an pointer in C or a single variable it seems not necessary?! (Or at least it is never called in the examples.). Is it necessary when creating an array? Or better when exactly should I use R_alloc? Thanks! Best regards, Michael ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
