Where can I find the definitions for these two functions. Grepping for their name brings only declarations but I can't find their implementation in the source code.
Presumably you are looking for the C code function definitions. What I typically do when looking for the definitions is search across all files for the function name without the Rf_
but with the return type. For example, for Rf_error
, I would search for void error
. In this case you pretty quickly get (from src/main/errors.c@758, for R version 3.2.2):
void error(const char *format, ...)
{
char buf[BUFSIZE];
RCNTXT *c = R_GlobalContext;
va_list(ap);
va_start(ap, format);
Rvsnprintf(buf, min(BUFSIZE, R_WarnLength), format, ap);
va_end(ap);
/* This can be called before R_GlobalContext is defined, so... */
/* If profiling is on, this can be a CTXT_BUILTIN */
if (c && (c->callflag & CTXT_BUILTIN)) c = c->nextcontext;
errorcall(c ? c->call : R_NilValue, "%s", buf);
}
Rf_warning
is defined at line 262 of the same file.
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