[Rd] R CMD check may not detect a code/documentation mismatch

[Petr Savicky]

For the package at
  http://www.cs.cas.cz/~savicky/R-devel/something_0.0.0.tar.gz
which is a minor part of some other package only to demonstrate the
problem, i get (under R version 2.11.0 Under development 2009-12-12 r50714
and also under R-2.9.2, openSUSE 11.1 (x86_64) and CentOS release 5.2)

  R CMD check something_0.0.0.tar.gz

  ...
  * checking Rd files ... OK
  * checking Rd metadata ... OK
  * checking Rd cross-references ... OK
  * checking for missing documentation entries ... OK
  * checking for code/documentation mismatches ... OK
  * checking Rd \usage sections ... OK
  * checking examples ... NONE
  * checking PDF version of manual ... OK

although the package code contains

  testCoreNA <- function()

and the documentation contains

  \usage{
  testCoreClass(verbose=0)
  testCoreAttrEval(verbose=0)
  testCoreReg(verbose=0)
  testCoreNA(verbose=0)
  }

There is a mismatch between code and documentation of testCoreNA(). Is the 
problem caused by having four entries in \usage{} section?

Petr Savicky.