SEH and C + + Exceptions, custom cseexception

Description of Cseexception

CSeExceptionClass is based on CException class provided by MFC. I overwrite some of useful methods, but it's working same the "like" any and exception class based on CException class-you C An find description in documentation provided by Visual C + +.

by Martin Ziacek

Source Files:

[cpp]View PlainCopyprint?

2. //////////////////////////////////////////////////////////////////////////
4. SeException.h by Martin Ziacek
8. #ifndef __seexception_h__
10. #define __seexception_h__
14. Class Cseexception: public cexception
16. {
18. Declare_dynamic (cseexception)
20. Public
22. Cseexception (UINT nsecode, _exception_pointers* pexcpointers);
24. Cseexception (cseexception & cseexc);
28. _exception_pointers* getsepointers (void);
30. PVOID getexceptionaddress (void);
34. UINT Getsecode (void);
36. void Delete (void);
38. int ReportError (uint nType = mb_ok, uint NIDHELP = 0);
40. BOOL geterrormessage (CString & cserrdescr, puint pnhelpcontext = NULL);
42. BOOL geterrormessage (LPTSTR lpszerror, UINT nmaxerror, puint pnhelpcontext = NULL);
44. Private
46. UINT m_nsecode;
48. _exception_pointers* m_pexcpointers;
50. };
54. void Setranslator (UINT nsecode, _exception_pointers* pexcpointers);
58. #endif//__seexception_h__

[cpp]View PlainCopyprint?

2. //////////////////////////////////////////////////////////////////////////
4. SeException.cpp by Martin Ziacek
8. #include "stdafx.h"
10. #include "SeException.h"
14. #ifdef _DEBUG
16. #define NEW Debug_new
18. #endif
22. #undef This_file
24. static char this_file[] = __file__;
28. #define CASE (nsecode,csstring) exception_# #nSeCode:/
30. Csstring.format (_t ("Exception%s (0x%.8x) at address 0x%.8x."), _t (#nSeCode), exception_# #nSeCode, m_pexcpointers- >exceptionrecord->exceptionaddress); /  
32. break ;
36. void Setranslator (UINT nsecode, _exception_pointers* pexcpointers)
38. {
40. throw New Cseexception (nsecode,pexcpointers);
42. }
46. Implement_dynamic (cseexception,cexception)
50. Cseexception::cseexception (UINT nsecode, _exception_pointers* pexcpointers)
52. {
54. M_nsecode = nsecode;
56. M_pexcpointers = pexcpointers;
58. }
62. Cseexception::cseexception (cseexception & Cseexc)
64. {
66. M_nsecode = cseexc.m_nsecode;
68. M_pexcpointers = cseexc.m_pexcpointers;
70. }
74. UINT Cseexception::getsecode ()
76. {
78. return m_nsecode;
80. }
84. _exception_pointers* cseexception::getsepointers ()
86. {
88. return m_pexcpointers;
90. }
94. PVOID cseexception::getexceptionaddress ()
96. {
98. return m_pexcpointers->exceptionrecord->exceptionaddress;
100. }
104. void Cseexception::D elete (void)
106. {
108. #ifdef _DEBUG
110. M_breadyfordelete = TRUE;
112. #endif
114. Delete this ;
116. }
120. int Cseexception::reporterror (uint nType/* = mb_ok*/, UINT nidhelp/* = 0*/)
122. {
124. int rc;
126. CString strmessage;
130. GetErrorMessage (strmessage);
132. rc = AfxMessageBox (strmessage,ntype,nidhelp);
136. return rc;
138. }
142. BOOL cseexception::geterrormessage (CString & cserrdescr, puint pnhelpcontext/* = null*/)
144. {
146. BOOL rc = TRUE;
150. if (pnhelpcontext! = NULL)
152. *pnhelpcontext = 0;
156. Switch (m_nsecode) {
158. Case (access_violation,cserrdescr);
160. Case (datatype_misalignment,cserrdescr);
162. Case (breakpoint,cserrdescr);
164. Case (single_step,cserrdescr);
166. Case (array_bounds_exceeded,cserrdescr);
168. Case (flt_denormal_operand,cserrdescr);
170. Case (flt_divide_by_zero,cserrdescr);
172. Case (flt_inexact_result,cserrdescr);
174. Case (flt_invalid_operation,cserrdescr);
176. Case (flt_overflow,cserrdescr);
178. Case (flt_stack_check,cserrdescr);
180. Case (flt_underflow,cserrdescr);
182. Case (int_divide_by_zero,cserrdescr);
184. Case (int_overflow,cserrdescr);
186. Case (priv_instruction,cserrdescr);
188. Case (in_page_error,cserrdescr);
190. Case (illegal_instruction,cserrdescr);
192. Case (noncontinuable_exception,cserrdescr);
194. Case (stack_overflow,cserrdescr);
196. Case (invalid_disposition,cserrdescr);
198. Case (guard_page,cserrdescr);
200. Case (invalid_handle,cserrdescr);
202. default:
204. CSERRDESCR = _t ("Unknown exception.");
206. rc = FALSE;
208. break ;
210. }
214. return rc;
216. }
220. BOOL cseexception::geterrormessage (LPTSTR lpszerror, UINT nmaxerror, puint pnhelpcontext/* = Null*/)
222. {
224. ASSERT (lpszerror! = NULL && afxisvalidstring (lpszerror, nmaxerror));
228. if (pnhelpcontext! = NULL)
230. *pnhelpcontext = 0;
234. CString strmessage;
236. GetErrorMessage (strmessage);
240. if (UINT) strmessage.getlength () >= nmaxerror) {
242. lpszerror[0] = 0;
244. return FALSE;
246. } Else {
248. Lstrcpyn (lpszerror, strmessage, nmaxerror);
250. return TRUE;
252. }
254. }

Demo Project:

[cpp]View PlainCopyprint?

2. void Csehdemodlg::onbtncreateexception ()
4. {
6. char *p = NULL;
8. Try
10. {
12. p[0] = 0;
14. }
16. Catch (cseexception *e)
18. {
20. TCHAR trcmsg[1024];
22. E->geterrormessage (trcmsg,1024);
24. TRACE (trcmsg);
26. TRACE (_t ("/n"));
28. E->reporterror (MB_OK | mb_iconstop);
30. E->delete ();
32. }
34. }

The Result:

From:http://www.codeproject.com/kb/cpp/seexception.aspx

http://blog.csdn.net/wangningyu/article/details/4579127

SEH and C + + Exceptions, custom cseexception