Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(223)

Unified Diff: swig/Lib/typemaps/typemaps.swg

Issue 553095: Checkin swig binaries for win, linux and Mac... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: '' Created 10 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « swig/Lib/typemaps/traits.swg ('k') | swig/Lib/typemaps/valtypes.swg » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: swig/Lib/typemaps/typemaps.swg
===================================================================
--- swig/Lib/typemaps/typemaps.swg (revision 0)
+++ swig/Lib/typemaps/typemaps.swg (revision 0)
@@ -0,0 +1,160 @@
+/* -----------------------------------------------------------------------------
+ * See the LICENSE file for information on copyright, usage and redistribution
+ * of SWIG, and the README file for authors - http://www.swig.org/release.html.
+ *
+ * typemaps.swg
+ *
+ * Tcl Pointer handling
+ *
+ * These mappings provide support for input/output arguments and common
+ * uses for C/C++ pointers.
+ * ----------------------------------------------------------------------------- */
+
+// INPUT typemaps.
+// These remap a C pointer to be an "INPUT" value which is passed by value
+// instead of reference.
+
+/*
+The following methods can be applied to turn a pointer into a simple
+"input" value. That is, instead of passing a pointer to an object,
+you would use a real value instead.
+
+ int *INPUT
+ short *INPUT
+ long *INPUT
+ long long *INPUT
+ unsigned int *INPUT
+ unsigned short *INPUT
+ unsigned long *INPUT
+ unsigned long long *INPUT
+ unsigned char *INPUT
+ bool *INPUT
+ float *INPUT
+ double *INPUT
+
+To use these, suppose you had a C function like this :
+
+ double fadd(double *a, double *b) {
+ return *a+*b;
+ }
+
+You could wrap it with SWIG as follows :
+
+ %include <typemaps.i>
+ double fadd(double *INPUT, double *INPUT);
+
+or you can use the %apply directive :
+
+ %include <typemaps.i>
+ %apply double *INPUT { double *a, double *b };
+ double fadd(double *a, double *b);
+
+*/
+
+// OUTPUT typemaps. These typemaps are used for parameters that
+// are output only. The output value is appended to the result as
+// a list element.
+
+/*
+The following methods can be applied to turn a pointer into an "output"
+value. When calling a function, no input value would be given for
+a parameter, but an output value would be returned. In the case of
+multiple output values, they are returned in the form of a Tcl tuple.
+
+ int *OUTPUT
+ short *OUTPUT
+ long *OUTPUT
+ long long *OUTPUT
+ unsigned int *OUTPUT
+ unsigned short *OUTPUT
+ unsigned long *OUTPUT
+ unsigned long long *OUTPUT
+ unsigned char *OUTPUT
+ bool *OUTPUT
+ float *OUTPUT
+ double *OUTPUT
+
+For example, suppose you were trying to wrap the modf() function in the
+C math library which splits x into integral and fractional parts (and
+returns the integer part in one of its parameters).K:
+
+ double modf(double x, double *ip);
+
+You could wrap it with SWIG as follows :
+
+ %include <typemaps.i>
+ double modf(double x, double *OUTPUT);
+
+or you can use the %apply directive :
+
+ %include <typemaps.i>
+ %apply double *OUTPUT { double *ip };
+ double modf(double x, double *ip);
+
+The Tcl output of the function would be a tuple containing both
+output values.
+
+*/
+
+// INOUT
+// Mappings for an argument that is both an input and output
+// parameter
+
+/*
+The following methods can be applied to make a function parameter both
+an input and output value. This combines the behavior of both the
+"INPUT" and "OUTPUT" methods described earlier. Output values are
+returned in the form of a Tcl tuple.
+
+ int *INOUT
+ short *INOUT
+ long *INOUT
+ long long *INOUT
+ unsigned int *INOUT
+ unsigned short *INOUT
+ unsigned long *INOUT
+ unsigned long long *INOUT
+ unsigned char *INOUT
+ bool *INOUT
+ float *INOUT
+ double *INOUT
+
+For example, suppose you were trying to wrap the following function :
+
+ void neg(double *x) {
+ *x = -(*x);
+ }
+
+You could wrap it with SWIG as follows :
+
+ %include <typemaps.i>
+ void neg(double *INOUT);
+
+or you can use the %apply directive :
+
+ %include <typemaps.i>
+ %apply double *INOUT { double *x };
+ void neg(double *x);
+
+Unlike C, this mapping does not directly modify the input value (since
+this makes no sense in Tcl). Rather, the modified input value shows
+up as the return value of the function. Thus, to apply this function
+to a Tcl variable you might do this :
+
+ x = neg(x)
+
+Note : previous versions of SWIG used the symbol 'BOTH' to mark
+input/output arguments. This is still supported, but will be slowly
+phased out in future releases.
+
+*/
+
+
+#if defined(SWIG_INOUT_NODEF)
+
+%apply_checkctypes(%typemaps_inoutn)
+
+%apply size_t& { std::size_t& };
+%apply ptrdiff_t& { std::ptrdiff_t& };
+
+#endif
« no previous file with comments | « swig/Lib/typemaps/traits.swg ('k') | swig/Lib/typemaps/valtypes.swg » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698