.\" @(#)ptclean.1	1.4 04/17/95 18:05:22
.TH PTCLEAN 1 "17 April 1995"
.SH NAME
ptclean \- clean up the parameterized types database
.SH SYNOPSIS
.B ptclean
.SH DESCRIPTION
.IX  "ptclean command"  ""  "\f(CWptclean\fP \(em clean up parameterized types database"
.B ptclean
removes all the data from the default templates database,
except the 
.B Template.opt 
file, which you may have modified.  This database, currently, a subdirectory 
called 
.BR Templates.DB , 
is used to store parameterized type (template) instantiations.
Since templates are instantiated automatically by the compiler,
changes in your program can render some already-instantiated
templates superfluous, but the compiler cannot efficiently verify
which instantiations are not currently used.
So you can use the 
.B ptclean 
command to remove all the instantiations, temporary files,
and dependency files from the database.
One reasonable way to use this command is as 
one of the commands executed by the
.B clean: 
target in your 
.BR Makefile .
.SH FILES
.TP 2.3i
.B Templates.DB
The default database (directory) of template instantiations
.TP
.B Templates.DB/Template.opt
Instantiation options file, the "mapfile"
.TP
.B Templates.DB/*.o
Template instantiation files
.TP
.B Templates.DB/*.state
Files that keep track of dependencies  
.TP
.B Templates.DB/*.system
Auxiliary dependency and map files
.TP
.B Templates.DB/*.promise
Auxiliary dependency and map files
.TP
.B Templates.DB/*.lock
Database lock files
.TP
.B Templates.DB/*.module
Auxiliary dependency files
.SH LIMITATIONS 
.B ptclean
cannot clean up any alternate template databases.