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/* File : example.i */
%module example
%{
extern int gcd(int x, int y);
extern int gcdmain(int argc, char *argv[]);
extern int count(char *bytes, int len, char c);
extern void capitalize (char *str, int len);
extern void circle (double cx, double cy);
extern int squareCubed (int n, int *OUTPUT);
%}
extern int gcd(int x, int y);
%typemap(gotype) (int argc, char *argv[]) "[]string"
%typemap(in) (int argc, char *argv[])
%{
{
int i;
_gostring_* a;
$1 = $input.len;
a = (_gostring_*) $input.array;
$2 = (char **) malloc (($1 + 1) * sizeof (char *));
for (i = 0; i < $1; i++) {
_gostring_ *ps = &a[i];
$2[i] = (char *) ps->p;
}
$2[i] = NULL;
}
%}
%typemap(argout) (int argc, char *argv[]) "" /* override char *[] default */
%typemap(freearg) (int argc, char *argv[])
%{
free($2);
%}
extern int gcdmain(int argc, char *argv[]);
%typemap(gotype) (char *bytes, int len) "string"
%typemap(in) (char *bytes, int len)
%{
$1 = $input.p;
$2 = $input.n;
%}
extern int count(char *bytes, int len, char c);
/* This example shows how to wrap a function that mutates a c string. A one
* element Go string slice is used so that the string can be returned
* modified.
*/
%typemap(gotype) (char *str, int len) "[]string"
%typemap(in) (char *str, int len)
%{
{
_gostring_ *a;
char *p;
int n;
a = (_gostring_*) $input.array;
p = a[0].p;
n = a[0].n;
$1 = malloc(n + 1);
$2 = n;
memcpy($1, p, n);
}
%}
/* Return the mutated string as a modified element in the array. */
%typemap(argout,fragment="AllocateString") (char *str, int len)
%{
{
_gostring_ *a;
a = (_gostring_*) $input.array;
a[0] = Swig_AllocateString($1, $2);
}
%}
%typemap(goargout,fragment="CopyString") (char *str, int len)
%{
$input[0] = swigCopyString($input[0])
%}
%typemap(freearg) (char *str, int len)
%{
free($1);
%}
extern void capitalize(char *str, int len);
/* A multi-valued constraint. Force two arguments to lie
inside the unit circle */
%typemap(check) (double cx, double cy)
%{
{
double a = $1*$1 + $2*$2;
if (a > 1.0) {
_swig_gopanic("$1_name and $2_name must be in unit circle");
return;
}
}
%}
extern void circle(double cx, double cy);
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