[Rd] DierckxSpline segfault

[Андрей Парамонов]

I've just encountered a segfault when using DierckxSpline::percur
function. Below is the minimal example which triggers the error:

---

library(DierckxSpline)
x <- 1:10
y <- rep(0, 10)
pspline <- percur(x, y)

---

 *** caught segfault ***
address (nil), cause 'memory not mapped'

Traceback:
 1: .Fortran("percur", iopt = as.integer(iopt), m = as.integer(m),
x = as.single(x), y = as.single(y), w = as.single(w), k = k,     s =
as.single(s), nest = as.integer(nest), n = as.integer(n),     knots =
Knots, coef = coef, fp = single(1), wrk = wrk, lwrk = lwrk,     iwrk =
iwrk, ier = integer(1))
 2: curfitSS(xyw, s = s, knots = knots, n = n, from = From, to = To,
  k = k, periodic = periodic, ...)
 3: curfit.default(x, periodic = TRUE, ...)
 4: curfit(x, periodic = TRUE, ...)
 5: percur(x, y)

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
Selection:

---

Package:       DierckxSpline
Type:          Package
Title:         R companion to "Curve and Surface Fitting with Splines"
Version:       1.1-2
Date:          2007-7-31
Author:        Sundar Dorai-Raj
Maintainer:    Sundar Dorai-Raj <sundar.dorai-raj at pdf.com>
Description:   This package provides a wrapper to the FITPACK routines
               written by Paul Dierckx. The original Fortran is
               available from http://www.netlib.org/dierckx
License:       GPL (>= 2)
Depends:       R (>= 2.4.0), stats, lattice, PolynomF
Suggests:      fda, splines
Packaged:      Sun Jan 11 13:08:12 2009; spencerg
Built:         R 2.8.1; i486-pc-linux-gnu; 2009-01-17 10:21:01; unix

---

I'm ready to provide any additional info,
Andrey