Mercurial > pub > dyncall > bindings

annotate R/rdyncall/demo/factorial.R @ 63:9b6cdffd30dd

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
- further fixes of inccorect overflow errors for int (and long on LLP64 systems) * prev commit had bugs * added overflow tests for also int, long, long long (for both, lp64 and llp64) - while at it, fixing a reference leak when not using python with utf8 caching
author Tassilo Philipp
date Sun, 19 May 2024 15:33:18 +0200
parents 0cfcc391201f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
1 f <- function(i,fun)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
2 {
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
3 if (i > 1) i * .dyncall(fun,"ip)i",i-1,fun) else i
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
4 }
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
5 e <- new.env()
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
6 cb <- new.callback("ip)i", f,e)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
7 e <- NULL
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
8 f <- NULL
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
9 gc()
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
10 r <- .dyncall(cb,"ip)i",12,cb)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
11 r == factorial(12)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
12 cb <- NULL
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
13 gc()