Ship  is not a support ship!
ϐ|���|��&! KiFastSystemCallRet
ϐ|���|��&! WaitForSingleObject + 18 bytes
ثY! SCP_DumpStack + 260 bytes
ثY! Warning + 430 bytes
ثY! sexp_set_support_ship + 1088 bytes
�wp �w�������w�F�Yx�"���J�Y
! eval_sexp + 7558 bytes
ثY! eval_when + 1026 bytes
�wp �w�������w�F�Yx�"���J�Y
! eval_sexp + 3231 bytes
ثY! mission_process_event + 313 bytes
ثY! mission_eval_goals + 513 bytes
ثY! game_simulation_frame + 1079 bytes
���&
! game_frame + 491 bytes
ثY! game_do_frame + 237 bytes
ثY! game_do_state + 379 bytes
ثY! gameseq_process_events + 237 bytes
ثY! game_main + 728 bytes
ثY! WinMain + 366 bytes
H"X��H��! __tmainCRTStartup + 358 bytes
ثY! WinMainCRTStartup + 15 bytes
ثY! RegisterWaitForInputIdle + 73 bytes

 	fs2_open_3_6_11d_INF.exe!debug_int3(char * file=0x00dd3b8c, int line=1250)  Line 760	C++
>	fs2_open_3_6_11d_INF.exe!Warning(char * filename=0x00dfa74b, int line=13704, const char * format=0x00dfc908, ...)  Line 1250 + 0x13 bytes	C++
 	fs2_open_3_6_11d_INF.exe!sexp_set_support_ship(int n=488)  Line 13704 + 0x28 bytes	C++
 	fs2_open_3_6_11d_INF.exe!eval_sexp(int cur_node=483, int referenced_node=-1)  Line 16907 + 0x9 bytes	C++
 	fs2_open_3_6_11d_INF.exe!eval_when(int n=479, int use_arguments=0)  Line 6785 + 0xb bytes	C++
 	fs2_open_3_6_11d_INF.exe!eval_sexp(int cur_node=476, int referenced_node=-1)  Line 16021 + 0x16 bytes	C++
 	fs2_open_3_6_11d_INF.exe!mission_process_event(int event=2)  Line 913 + 0xb bytes	C++
 	fs2_open_3_6_11d_INF.exe!mission_eval_goals()  Line 1062 + 0x9 bytes	C++
 	fs2_open_3_6_11d_INF.exe!game_simulation_frame()  Line 4277	C++
 	fs2_open_3_6_11d_INF.exe!game_frame(int paused=0)  Line 4693	C++
 	fs2_open_3_6_11d_INF.exe!game_do_frame()  Line 5121 + 0x7 bytes	C++
 	fs2_open_3_6_11d_INF.exe!game_do_state(int state=2)  Line 6892	C++
 	fs2_open_3_6_11d_INF.exe!gameseq_process_events()  Line 405 + 0x14 bytes	C++
 	fs2_open_3_6_11d_INF.exe!game_main(char * cmdline=0x0015232a)  Line 7453 + 0x5 bytes	C++
 	fs2_open_3_6_11d_INF.exe!WinMain(HINSTANCE__ * hInst=0x00400000, HINSTANCE__ * hPrev=0x00000000, char * szCmdLine=0x0015232a, int nCmdShow=10)  Line 7527 + 0x9 bytes	C++
 	fs2_open_3_6_11d_INF.exe!__tmainCRTStartup()  Line 263 + 0x2c bytes	C
 	fs2_open_3_6_11d_INF.exe!WinMainCRTStartup()  Line 182	C
 	kernel32.dll!7c817067() 	
 	[Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll]	

Locals:
-		filename	0x00dfa74b "sexp.cpp"	char *
			115 's'	char
		line	13704	int
-		format	0x00dfc908 "Ship %s is not a support ship!"	const char *
			83 'S'	const char
		result	6	int
+		assertString	"Ship  is not a support ship!
ϐ|���|��&! KiFastSystemCallRet
ϐ|���|��&! WaitForSingleObject + 18 bytes
ثY! SCP_DumpStack + 260 bytes
ثY! Warning + 430 bytes
ثY! sexp_set_support_ship + 1088 bytes
�wp �w�������w�F�Yx�"���J�Y
! eval_sexp + 7558 bytes
ثY! eval_when + 1026 bytes
�wp �w�������w�F�Yx�"���J�Y
! eval_sexp + 3231 bytes	std::basic_string<char,std::char_traits<char>,std::allocator<char> >
+		callStack	{m_stackFrames={...} }	SCP_DebugCallStack
		i	28	int
		slen	28	int
+		args	0x00000000 <Bad Ptr>	char *


Autos:

+		AssertText2	0x01007aa8 "Warning: Ship  is not a support ship!
File: sexp.cpp
Line: 13704
"	char [1024]
		Dump_to_log	true	bool
+		dumpBuffer	{buffer=0x010100b0 "" current=0x010100b0 "" }	DumpBuffer
+		dumpBuffer.buffer	0x010100b0 ""	char [32000]
		flags	69632	unsigned int
		result	6	int

Index: parse/sexp.cpp
===================================================================
--- parse/sexp.cpp	(revision 5529)
+++ parse/sexp.cpp	(working copy)
@@ -13699,7 +13699,7 @@
 		Warning(LOCATION, "Support ship class '%s' not found.\n", CTEXT(n));
 		return;
 	}
-	if (!(Ship_info[temp_val].flags & SIF_SUPPORT))
+	if ((temp_val >= 0) && !(Ship_info[temp_val].flags & SIF_SUPPORT))
 	{
 		Warning(LOCATION, "Ship %s is not a support ship!", Ship_info[temp_val].name);
 		return;