52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
/* assert.cc: Handle the assert macro for WIN32.
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Copyright 1997, 1998, 2000 Cygnus Solutions.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <wingdi.h>
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#include <winuser.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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/* This function is called when the assert macro fails. This will
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override the function of the same name in newlib. */
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extern "C" void
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__assert (const char *file, int line, const char *failedexpr)
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{
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HANDLE h;
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/* If we don't have a console in a Windows program, then bring up a
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message box for the assertion failure. */
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h = CreateFileA ("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE, &sec_none_nih,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (h == INVALID_HANDLE_VALUE || h == 0)
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{
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char *buf;
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buf = (char *) alloca (100 + strlen (failedexpr));
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__small_sprintf (buf, "Failed assertion\n\t%s\nat line %d of file %s",
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failedexpr, line, file);
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MessageBox (NULL, buf, NULL, MB_OK | MB_ICONERROR | MB_TASKMODAL);
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}
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else
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{
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CloseHandle (h);
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small_printf ("assertion \"%s\" failed: file \"%s\", line %d\n",
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failedexpr, file, line);
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}
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abort ();
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/* NOTREACHED */
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}
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