Find C source code for internal R functions

Source: R/names_c.R

Opens a link to code search on github.

show_c_source(fun)

Arguments

fun

.Internal or .Primitive function call.

Examples

# \donttest{
show_c_source(.Internal(mean(x)))
#> mean is implemented by do_summary with op = 1
#> Please visit https://github.com/search?q=SEXP%20attribute_hidden%20do_summary+repo:wch/r-source&type=Code
show_c_source(.Primitive(sum(x)))
#> sum is implemented by do_summary with op = 0
#> Please visit https://github.com/search?q=SEXP%20attribute_hidden%20do_summary+repo:wch/r-source&type=Code
# }