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The great merge

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@4141 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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Dave Beazley 2002-11-30 22:01:28 +00:00
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Lib/pointer.i
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//
// SWIG Pointer manipulation library
//
// This library can be used to manipulate C pointers.
%title "SWIG Pointer Library"
%module pointer
%section "Pointer Handling Library",noinfo,after,pre,nosort,skip=1,chop_left=3,chop_right=0,chop_top=0,chop_bottom=0
%text %{
%include pointer.i
The pointer.i library provides run-time support for managing and
manipulating a variety of C/C++ pointer values. In particular,
you can create various kinds of objects and dereference common
pointer types. This is done through a common set of functions:
ptrvalue - Dereferences a pointer
ptrset - Set the value of an object referenced by
a pointer.
ptrcreate - Create a new object and return a pointer.
ptrfree - Free the memory allocated by ptrcreate.
ptradd - Increment/decrement a pointer value.
When creating, dereferencing, or setting the value of pointer
variable, only the common C datatypes of int, short, long, float,
double, char, and char * are currently supported. Other
datatypes may generate an error.
One of the more interesting aspects of this library is that
it operates with a wide range of datatypes. For example,
the "ptrvalue" function can dereference "double *", "int *",
"long *", "char *", and other datatypes. Since SWIG encodes
pointers with type information, this can be done transparently
and in most cases, you can dereference a pointer without
ever knowing what type it actually is.
This library is primarily designed for utility, not high
performance (the dynamic determination of pointer types takes
more work than most normal wrapper functions). As a result,
you may achieve better performance by writing customized
"helper" functions if you're making lots of calls to these
functions in inner loops or other intensive operations.
%}
// Record the types that supported by the library
%types(int *, short *, long *, float *, double *, char *, char **, void *);
// This library is a pretty hideous mess of language dependent code.
// Grab the implementation from the appropriate libray
%include ptrlang.i
%echo "pointer.i is deprecated. Use cpointer.i instead."
%echo "See http://www.swig.org/Doc1.3/Library.html"