From df9129b3553e861b55d0041df01aba078d276e7f Mon Sep 17 00:00:00 2001
From: "zik.saleeba" <zik.saleeba@21eae674-98b7-11dd-bd71-f92a316d2d60>
Date: Tue, 27 Jul 2010 15:35:25 +0000
Subject: [PATCH] Calls to exit(n) now return the exit value n to the command
 line. This fixes issue 100.

git-svn-id: http://picoc.googlecode.com/svn/trunk@478 21eae674-98b7-11dd-bd71-f92a316d2d60
---
 picoc.c                  | 5 ++---
 picoc.h                  | 3 ++-
 platform.c               | 3 +++
 platform/platform_unix.c | 3 ++-
 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/picoc.c b/picoc.c
index 42b7dd7..d32674f 100644
--- a/picoc.c
+++ b/picoc.c
@@ -3,7 +3,6 @@
 #define CALL_MAIN_NO_ARGS "main();"
 #define CALL_MAIN_WITH_ARGS "main(__argc,__argv);"
 
-
 /* initialise everything */
 void Initialise(int StackSize)
 {
@@ -93,7 +92,7 @@ int main(int argc, char **argv)
         if (PlatformSetExitPoint())
         {
             Cleanup();
-            return 1;
+            return ExitValue;
         }
         
         for (; ParamCount < argc && strcmp(argv[ParamCount], "-") != 0; ParamCount++)
@@ -125,7 +124,7 @@ int picoc(char *SourceStr)
     if (ExitBuf[40]) {
         printf("leaving picoC\n\r");
         Cleanup();
-        return 1;
+        return ExitValue;
     }
         
     if (SourceStr)    
diff --git a/picoc.h b/picoc.h
index fc27f7c..efa5244 100644
--- a/picoc.h
+++ b/picoc.h
@@ -428,10 +428,11 @@ void PlatformPutc(unsigned char OutCh, union OutputStreamInfo *);
 void PlatformErrorPrefix(struct ParseState *Parser);
 void PlatformPrintf(const char *Format, ...);
 void PlatformVPrintf(const char *Format, va_list Args);
-void PlatformExit();
+void PlatformExit(int ExitVal);
 void PlatformLibraryInit();
 void Initialise();
 void Cleanup();
+extern int ExitValue;
 
 /* include.c */
 void IncludeInit();
diff --git a/platform.c b/platform.c
index b4b26f9..1359f08 100644
--- a/platform.c
+++ b/platform.c
@@ -1,5 +1,8 @@
 #include "picoc.h"
 
+/* the value passed to exit() */
+int ExitValue = 0;
+
 void PrintSourceTextErrorLine(const char *FileName, const char *SourceText, int Line, int CharacterPos)
 {
     int LineCount;
diff --git a/platform/platform_unix.c b/platform/platform_unix.c
index 50f6b57..9654f34 100644
--- a/platform/platform_unix.c
+++ b/platform/platform_unix.c
@@ -106,8 +106,9 @@ void PlatformScanFile(const char *FileName)
 jmp_buf ExitBuf;
 
 /* exit the program */
-void PlatformExit()
+void PlatformExit(int RetVal)
 {
+    ExitValue = RetVal;
     longjmp(ExitBuf, 1);
 }