Mercurial > pub > dyncall > bindings

annotate R/rdyncall/demo/qsort.R @ 2:a27ef6fdc275

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
- assume dyncall dir is next to maintainers'
author cslag
date Thu, 31 Dec 2015 20:20:18 +0100
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 dynbind(c("msvcrt","c","c.so.6"), "qsort(piip)v;")
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
2 cb <- new.callback("pp)i",function(px,py){
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
3 x <- .unpack(px, 0, "d")
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
4 y <- .unpack(py, 0, "d")
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
5 if (x > y) return(1) else if (x == y) return(0) else return(-1)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
6 })
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
7 x <- rnorm(100)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
8 qsort(x,length(x),8,cb)
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
9
0cfcc391201f initial from svn dyncall-1745
Daniel Adler
parents:
diff changeset
10