Edit File: progargcargv.i
/* int PROG_ARGC char **PROG_ARGV Some C function receive argc and argv from C main function. This typemap provides ignore typemap which pass Ruby ARGV contents as argc and argv to C function. */ // argc and argv %typemap(in,numinputs=0) int PROG_ARGC { $1 = RARRAY_LEN(rb_argv) + 1; } %typemap(in,numinputs=0) char **PROG_ARGV { int i, n; VALUE ary = rb_eval_string("[$0] + ARGV"); n = RARRAY_LEN(ary); $1 = (char **)malloc(n + 1); for (i = 0; i < n; i++) { VALUE v = rb_obj_as_string(RARRAY_PTR(ary)[i]); $1[i] = (char *)malloc(RSTRING_LEN(v) + 1); strcpy($1[i], RSTRING_PTR(v)); } } %typemap(freearg) char **PROG_ARGV { int i, n = RARRAY_LEN(rb_argv) + 1; for (i = 0; i < n; i++) free($1[i]); free($1); }