FM / python

/usr/share/swig/3.0.12/python/

/usr/share/swig/3.0.12/python

Name	Size	Mode	Actions
argcargv.i	2642	0644	edit dl rm
attribute.i	34	0644	edit dl rm
boost_shared_ptr.i	16295	0644	edit dl rm
builtin.swg	25016	0644	edit dl rm
carrays.i	338	0644	edit dl rm
ccomplex.i	763	0644	edit dl rm
cdata.i	30	0644	edit dl rm
cmalloc.i	32	0644	edit dl rm
cni.i	42	0644	edit dl rm
complex.i	80	0644	edit dl rm
cpointer.i	33	0644	edit dl rm
cstring.i	32	0644	edit dl rm
cwstring.i	60	0644	edit dl rm
defarg.swg	1154	0644	edit dl rm
director.swg	10638	0644	edit dl rm
embed.i	2530	0644	edit dl rm
exception.i	139	0644	edit dl rm
factory.i	32	0644	edit dl rm
file.i	1035	0644	edit dl rm
implicit.i	287	0644	edit dl rm
jstring.i	1759	0644	edit dl rm
pyabc.i	418	0644	edit dl rm
pyapi.swg	1339	0644	edit dl rm
pybackward.swg	1162	0644	edit dl rm
pybuffer.i	2782	0644	edit dl rm
pyclasses.swg	3474	0644	edit dl rm
pycomplex.swg	2243	0644	edit dl rm
pycontainer.swg	29789	0644	edit dl rm
pydocs.swg	1104	0644	edit dl rm
pyerrors.swg	1689	0644	edit dl rm
pyfragments.swg	551	0644	edit dl rm
pyhead.swg	5741	0644	edit dl rm
pyinit.swg	13525	0644	edit dl rm
pyiterators.swg	10650	0644	edit dl rm
pymacros.swg	38	0644	edit dl rm
pyname_compat.i	4124	0644	edit dl rm
pyopers.swg	10223	0644	edit dl rm
pyprimtypes.swg	8070	0644	edit dl rm
pyrun.swg	53129	0644	edit dl rm
pyruntime.swg	795	0644	edit dl rm
pystdcommon.swg	7102	0644	edit dl rm
pystrings.swg	4422	0644	edit dl rm
python.swg	2035	0644	edit dl rm
pythonkw.swg	2355	0644	edit dl rm
pythreads.swg	2864	0644	edit dl rm
pytuplehlp.swg	308	0644	edit dl rm
pytypemaps.swg	3208	0644	edit dl rm
pyuserdir.swg	6326	0644	edit dl rm
pywstrings.swg	2097	0644	edit dl rm
std_alloc.i	27	0644	edit dl rm
std_array.i	3693	0644	edit dl rm
std_auto_ptr.i	585	0644	edit dl rm
std_basic_string.i	2817	0644	edit dl rm
std_carray.i	1583	0644	edit dl rm
std_char_traits.i	33	0644	edit dl rm
std_common.i	2319	0644	edit dl rm
std_complex.i	469	0644	edit dl rm
std_container.i	58	0644	edit dl rm
std_deque.i	678	0644	edit dl rm
std_except.i	35	0644	edit dl rm
std_ios.i	66	0644	edit dl rm
std_iostream.i	107	0644	edit dl rm
std_list.i	668	0644	edit dl rm
std_map.i	9975	0644	edit dl rm
std_multimap.i	2578	0644	edit dl rm
std_multiset.i	1085	0644	edit dl rm
std_pair.i	6167	0644	edit dl rm
std_set.i	1490	0644	edit dl rm
std_shared_ptr.i	68	0644	edit dl rm
std_sstream.i	29	0644	edit dl rm
std_streambuf.i	31	0644	edit dl rm
std_string.i	35	0644	edit dl rm
std_unordered_map.i	8653	0644	edit dl rm
std_unordered_multimap.i	3115	0644	edit dl rm
std_unordered_multiset.i	1436	0644	edit dl rm
std_unordered_set.i	1719	0644	edit dl rm
std_vector.i	886	0644	edit dl rm
std_vectora.i	829	0644	edit dl rm
std_wios.i	26	0644	edit dl rm
std_wiostream.i	166	0644	edit dl rm
std_wsstream.i	30	0644	edit dl rm
std_wstreambuf.i	32	0644	edit dl rm
std_wstring.i	63	0644	edit dl rm
stl.i	182	0644	edit dl rm
typemaps.i	4453	0644	edit dl rm
wchar.i	186	0644	edit dl rm

Edit: /usr/share/swig/3.0.12/python/typemaps.i (4453B)

/* -----------------------------------------------------------------------------
 * typemaps.i
 *
 * 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 Python 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 Python 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 Python 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 Python).  Rather, the modified input value shows
up as the return value of the function.  Thus, to apply this function
to a Python 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.

%include <typemaps/typemaps.swg>

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