Replace all exit() with SWIG_exit()

For consistent cleanup on error

Source/CParse/parser.y

@@ -1779,7 +1779,7 @@ declaration    : swig_directive { $$ = $1; }
 		  } else {
 		      Swig_error(cparse_file, cparse_line, "Syntax error in input(1).\n");
 		  }
-		  exit(1);
+		  SWIG_exit(EXIT_FAILURE);
                }
 /* Out of class constructor/destructor declarations */
                | c_constructor_decl { 
@@ -3359,7 +3359,7 @@ c_decl_tail    : SEMI {
 		   } else {
 		       Swig_error(cparse_file, cparse_line, "Syntax error - possibly a missing semicolon.\n");
 		   }
-		   exit(1);
+		   SWIG_exit(EXIT_FAILURE);
                }
               ;
 
@@ -3649,7 +3649,7 @@ c_constructor_decl : storage_class type LPAREN parms RPAREN ctor_end {
 		    }
 		    if (err) {
 		      Swig_error(cparse_file,cparse_line,"Syntax error in input(2).\n");
-		      exit(1);
+		      SWIG_exit(EXIT_FAILURE);
 		    }
                 }
                 ;
@@ -4632,7 +4632,7 @@ cpp_members  : cpp_member cpp_members {
 	       int start_line = cparse_line;
 	       skip_decl();
 	       Swig_error(cparse_file,start_line,"Syntax error in input(3).\n");
-	       exit(1);
+	       SWIG_exit(EXIT_FAILURE);
 	       } cpp_members { 
 		 $$ = $3;
    	     }

Source/Modules/guile.cxx

@@ -255,7 +255,7 @@ public:
     if (goops) {
       if (linkage != GUILE_LSTYLE_PASSIVE && linkage != GUILE_LSTYLE_MODULE) {
 	Printf(stderr, "guile: GOOPS support requires passive or module linkage\n");
-	exit(1);
+	SWIG_exit(EXIT_FAILURE);
       }
     }
 

Source/Modules/php.cxx

@@ -1223,7 +1223,7 @@ public:
 	/* FIXME: How should this be handled?  The rest of SWIG just seems
 	 * to not bother checking for malloc failing! */
 	fprintf(stderr, "Malloc failed!\n");
-	exit(1);
+	SWIG_exit(EXIT_FAILURE);
       }
       for (i = 0; i < max_num_of_arguments; ++i) {
 	arg_names[i] = NULL;
@@ -1235,7 +1235,7 @@ public:
 	/* FIXME: How should this be handled?  The rest of SWIG just seems
 	 * to not bother checking for malloc failing! */
 	fprintf(stderr, "Malloc failed!\n");
-	exit(1);
+	SWIG_exit(EXIT_FAILURE);
       }
       for (i = 0; i < max_num_of_arguments; ++i) {
 	arg_values[i] = NULL;

Source/Modules/python.cxx

@@ -16,7 +16,6 @@
 #include "cparse.h"
 #include <ctype.h>
 #include <errno.h>
-#include <stdlib.h>
 #include "pydoc.h"
 
 #include <stdint.h>

Source/Modules/swigmod.h

@@ -371,7 +371,6 @@ struct TargetLanguageModule {
 int SWIG_main(int argc, char *argv[], const TargetLanguageModule *tlm);
 void emit_parameter_variables(ParmList *l, Wrapper *f);
 void emit_return_variable(Node *n, SwigType *rt, Wrapper *f);
-void SWIG_exit(int);		/* use EXIT_{SUCCESS,FAILURE} */
 void SWIG_config_file(const_String_or_char_ptr );
 const String *SWIG_output_directory();
 void SWIG_config_cppext(const char *ext);

Source/Modules/typepass.cxx

@@ -961,7 +961,7 @@ class TypePass:private Dispatcher {
       if (Getattr(c, "sym:overloaded") != checkoverloaded) {
         Printf(stdout, "sym:overloaded error c:%p checkoverloaded:%p\n", c, checkoverloaded);
         Swig_print_node(c);
-        exit (1);
+        SWIG_exit(EXIT_FAILURE);
       }
 
       String *decl = Strcmp(nodeType(c), "using") == 0 ? NewString("------") : Getattr(c, "decl");
@@ -969,7 +969,7 @@ class TypePass:private Dispatcher {
       if (!Getattr(c, "sym:overloaded")) {
         Printf(stdout, "sym:overloaded error.....%p\n", c);
         Swig_print_node(c);
-        exit (1);
+        SWIG_exit(EXIT_FAILURE);
       }
       c = Getattr(c, "sym:nextSibling");
     }

Source/Swig/getopt.c

@@ -16,7 +16,6 @@
  * sure there are no unmarked options.
  * 
  * TODO: 
- *     - This module needs to be modified so that it doesn't call exit().
  *       Should have cleaner error handling in general.
  * ----------------------------------------------------------------------------- */
 
@@ -88,11 +87,11 @@ void Swig_check_options(int check_input) {
   }
   if (error) {
     Printf(stderr, "Use 'swig -help' for available options.\n");
-    exit(1);
+    SWIG_exit(EXIT_FAILURE);
   }
   if (check_input && marked[numargs - 1]) {
     Printf(stderr, "Must specify an input file. Use -help for available options.\n");
-    exit(1);
+    SWIG_exit(EXIT_FAILURE);
   }
 }
 
@@ -105,5 +104,5 @@ void Swig_check_options(int check_input) {
 void Swig_arg_error(void) {
   Printf(stderr, "SWIG : Unable to parse command line options.\n");
   Printf(stderr, "Use 'swig -help' for available options.\n");
-  exit(1);
+  SWIG_exit(EXIT_FAILURE);
 }

Source/Swig/misc.c

@@ -1177,7 +1177,7 @@ String *Swig_string_command(String *s) {
       pclose(fp);
     } else {
       Swig_error("SWIG", Getline(s), "Command encoder fails attempting '%s'.\n", s);
-      exit(1);
+      SWIG_exit(EXIT_FAILURE);
     }
   }
 #endif
@@ -1327,7 +1327,8 @@ static int split_regex_pattern_subst(String *s, String **pattern, String **subst
 
 err_out:
   Swig_error("SWIG", Getline(s), "Invalid regex substitution: '%s'.\n", s);
-  exit(1);
+  SWIG_exit(EXIT_FAILURE);
+  return 0;
 }
 
 /* This function copies len characters from src to dst, possibly applying case conversions to them: if convertCase is 1, to upper case and if it is -1, to lower
@@ -1449,7 +1450,7 @@ String *Swig_string_regex(String *s) {
     if (!compiled_pat) {
       Swig_error("SWIG", Getline(s), "PCRE compilation failed: '%s' in '%s':%i.\n",
           pcre_error, Char(pattern), pcre_errorpos);
-      exit(1);
+      SWIG_exit(EXIT_FAILURE);
     }
     rc = pcre_exec(compiled_pat, NULL, input, (int)strlen(input), 0, 0, captures, 30);
     if (rc >= 0) {
@@ -1457,7 +1458,7 @@ String *Swig_string_regex(String *s) {
     } else if (rc != PCRE_ERROR_NOMATCH) {
       Swig_error("SWIG", Getline(s), "PCRE execution failed: error %d while matching \"%s\" using \"%s\".\n",
 	rc, Char(pattern), input);
-      exit(1);
+      SWIG_exit(EXIT_FAILURE);
     }
   }
 
@@ -1475,7 +1476,8 @@ String *Swig_pcre_version(void) {
 
 String *Swig_string_regex(String *s) {
   Swig_error("SWIG", Getline(s), "PCRE regex support not enabled in this SWIG build.\n");
-  exit(1);
+  SWIG_exit(EXIT_FAILURE);
+  return 0;
 }
 
 String *Swig_pcre_version(void) {

Source/Swig/naming.c

@@ -1105,7 +1105,7 @@ static int name_regexmatch_value(Node *n, String *pattern, String *s) {
     Swig_error("SWIG", Getline(n),
                "Invalid regex \"%s\": compilation failed at %d: %s\n",
                Char(pattern), errpos, err);
-    exit(1);
+    SWIG_exit(EXIT_FAILURE);
   }
 
   rc = pcre_exec(compiled_pat, NULL, Char(s), Len(s), 0, 0, NULL, 0);
@@ -1118,7 +1118,7 @@ static int name_regexmatch_value(Node *n, String *pattern, String *s) {
     Swig_error("SWIG", Getline(n),
                "Matching \"%s\" against regex \"%s\" failed: %d\n",
                Char(s), Char(pattern), rc);
-    exit(1);
+    SWIG_exit(EXIT_FAILURE);
   }
 
   return 1;
@@ -1131,7 +1131,7 @@ static int name_regexmatch_value(Node *n, String *pattern, String *s) {
   (void)s;
   Swig_error("SWIG", Getline(n),
              "PCRE regex matching is not available in this SWIG build.\n");
-  exit(1);
+  SWIG_exit(EXIT_FAILURE);
 }
 
 #endif /* HAVE_PCRE/!HAVE_PCRE */

Source/Swig/scanner.c

@@ -833,7 +833,7 @@ static int look(Scanner *s) {
 	return SWIG_TOKEN_MODEQUAL;
       } else if (c == '}') {
 	Swig_error(cparse_file, cparse_line, "Syntax error. Extraneous '%%}'\n");
-	exit(1);
+	SWIG_exit(EXIT_FAILURE);
       } else {
 	retract(s, 1);
 	return SWIG_TOKEN_PERCENT;

Source/Swig/swig.h

@@ -438,6 +438,7 @@ extern int        ParmList_is_compactdefargs(ParmList *p);
   extern void Language_replace_special_variables(String *method, String *tm, Parm *parm);
   extern void Swig_print(DOH *object, int count);
   extern void Swig_print_with_location(DOH *object, int count);
+  extern void SWIG_exit(int exit_code);
 
 
 /* -- template init -- */