141 lines
3.5 KiB
C++
141 lines
3.5 KiB
C++
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//
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// _DBGPM.CPP
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//
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// Source file for ArchiveLib 1.0
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//
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// Copyright (c) Greenleaf Software, Inc. 1994
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// All Rights Reserved
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//
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// CONTENTS
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//
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// _ALAssertFailure()
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New release
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//
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//
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#include "arclib.h"
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#if !defined( AL_IBM )
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#pragma hdrstop
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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//
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// NAME
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//
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// _ALAssertFailure()
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//
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// PLATFORMS/ENVIRONMENTS
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//
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// PM
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// C++
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//
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// SHORT DESCRIPTION
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//
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// Function used to print an assertion failure under PM.
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//
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// C++ SYNOPSIS
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//
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// #include "arclib.h"
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//
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// void _ALAssertFailure( const char *condition,
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// const char *filename,
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// int line,
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// const char *message,
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// ... );
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//
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// C SYNOPSIS
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//
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// None, this is an internal C++ support function.
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//
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// VB SYNOPSIS
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//
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// None, this is an internal C++ support function.
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//
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// DELPHI SYNOPSIS
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//
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// None, this is an internal C++ support function.
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//
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// ARGUMENTS
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//
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// condition : A character string containing the condition that failed,
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// leading to the assertion.
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//
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// filename : The name of the file where the assertion error took place.
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//
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// line : The line in the file where the assertion error took place.
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//
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// message : The error message associated with the assertion error.
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// This message is a sprintf() style format string.
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//
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// ... : Any additional arguments.
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//
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// DESCRIPTION
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//
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// The C run time library features an assert() macro, that can be used to
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// abort a program if a given condition isn't true. It aborts the program
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// by calling a routine that looks something like this. The AL_ASSERT()
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// macro that we use is even better, because it includes a comment
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// that gets displayed when the abort takes place. This routine is
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// responsible for displaying that comment, along with the file name and
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// the line number, then aborting the program. It is called by the
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// AL_ASSERT() macro when the conditional expression argument fails.
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//
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// This is a special version of the function that gets called when the
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// program in question is running under the Presentation Manager. Instead
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// of trying to display the error message with a printf() statement, it
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// formats it and puts it into a message box.
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//
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// RETURNS
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//
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// Nothing
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//
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// EXAMPLE
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//
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// SEE ALSO
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New release
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//
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void AL_CFUNCTION
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_ALAssertFailure( const char AL_DLL_FAR *condition, /* Tag debug function */
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const char AL_DLL_FAR *filename,
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int line,
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const char AL_DLL_FAR *message,
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... )
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{
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char buf1[ 256 ];
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char buf2[ 128 ];
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va_list argptr;
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va_start( argptr, message );
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vsprintf( buf2, message, argptr );
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va_end( argptr );
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sprintf
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( buf1,
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"Assertion error, ArchiveLib is aborting the application.\n"
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"Condition = %s\n"
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"File = %s, line = %d\n"
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"%s",
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condition,
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filename,
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line,
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buf2 );
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WinMessageBox( HWND_DESKTOP,
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0,
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buf1,
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" ArchiveLib assertion error ",
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0,
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MB_ICONEXCLAMATION );
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abort();
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}
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