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authorDave Beazley <dave-swig@dabeaz.com>2000-01-11 21:15:54 +0000
committerDave Beazley <dave-swig@dabeaz.com>2000-01-11 21:15:54 +0000
commit4e317b85afc493431911890b13022375d8243c47 (patch)
tree3c34045abbc635d4bd23867a21a8ef51c5120918 /Lib/pointer.i
parent15f2345dcdb0290b1e357249ec18947d0d068b8c (diff)
downloadswig-4e317b85afc493431911890b13022375d8243c47.tar.gz
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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@39 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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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:
+
+ ptrcast - Casts a pointer to a new type
+ 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.
+ ptrmap - Make two datatypes equivalent to each other.
+ (Is a runtime equivalent of typedef).
+
+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.
+%}
+
+// This library is a pretty hideous mess of language dependent code.
+// Grab the implementation from the appropriate libray
+
+%include ptrlang.i
+
+
+
+