diff options
Diffstat (limited to 'Examples/ruby/multimap/example.i')
-rw-r--r-- | Examples/ruby/multimap/example.i | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/Examples/ruby/multimap/example.i b/Examples/ruby/multimap/example.i new file mode 100644 index 0000000..56952ec --- /dev/null +++ b/Examples/ruby/multimap/example.i @@ -0,0 +1,92 @@ +%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); +%} + +%include exception.i +%include typemaps.i + +extern int gcd(int x, int y); + +%typemap(in) (int argc, char *argv[]) { + int i; + + if (TYPE($input) != T_ARRAY) { + SWIG_exception(SWIG_ValueError, "Expected an array"); + } + $1 = RARRAY($input)->len; + if ($1 == 0) { + SWIG_exception(SWIG_ValueError, "List must contain at least 1 element"); + } + $2 = (char **) malloc(($1+1)*sizeof(char *)); + for (i = 0; i < $1; i++) { + VALUE s = rb_ary_entry($input,i); + if (TYPE(s) != T_STRING) { + free($2); + SWIG_exception(SWIG_ValueError, "List items must be strings"); + } + $2[i] = STR2CSTR(s); + } + $2[i] = 0; +} + +%typemap(freearg) (int argc, char *argv[]) { + free($2); +} + +extern int gcdmain(int argc, char *argv[]); + +%typemap(in) (char *bytes, int len) { + if (TYPE($input) != T_STRING) { + SWIG_exception(SWIG_ValueError, "Expected a string"); + } + $1 = STR2CSTR($input); + $2 = RSTRING($input)->len; +} + +extern int count(char *bytes, int len, char c); + + +/* This example shows how to wrap a function that mutates a string */ + +%typemap(in) (char *str, int len) { + char *temp; + if (TYPE($input) != T_STRING) { + SWIG_exception(SWIG_ValueError,"Expected a string"); + } + temp = STR2CSTR($input); + $2 = RSTRING($input)->len; + $1 = (char *) malloc($2+1); + memmove($1,temp,$2); +} + +/* Return the mutated string as a new object. */ + +%typemap(argout, fragment="output_helper") (char *str, int len) { + VALUE o; + o = rb_str_new($1,$2); + $result = output_helper($result,o); + 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_exception(SWIG_ValueError,"$1_name and $2_name must be in unit circle"); + } +} + +extern void circle(double cx, double cy); + + |