67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/***
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*assert.c - Display a message and abort
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*
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* Copyright (c) 1988-1991, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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*
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*Revision History:
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* 05-19-88 JCR Module created.
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* 08-10-88 PHG Corrected copyright date
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* 03-14-90 GJF Replaced _LOAD_DS with _CALLTYPE1 and added #include
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* <cruntime.h>. Also, fixed the copyright.
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* 04-05-90 GJF Added #include <assert.h>
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* 10-04-90 GJF New-style function declarator.
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* 06-19-91 GJF Conditionally use setvbuf() on stderr to prevent
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* the implicit call to malloc() if stderr is being used
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* for the first time (assert() should work even if the
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* heap is trashed).
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <file2.h>
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#include <stdlib.h>
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#include <stdio.h>
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#undef NDEBUG
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#include <assert.h>
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static char _assertstring[] = "Assertion failed: %s, file %s, line %d\n";
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/***
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*_assert() - Display a message and abort
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*
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*Purpose:
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* The assert macro calls this routine if the assert expression is
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* true. By placing the assert code in a subroutine instead of within
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* the body of the macro, programs that call assert multiple times will
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* save space.
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*
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*Entry:
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*
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*Exit:
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*
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*Exceptions:
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*
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*******************************************************************************/
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void _CALLTYPE1 _assert (
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void *expr,
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void *filename,
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unsigned lineno
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)
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{
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if ( !anybuf(stderr) )
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/*
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* stderr is unused, hence unbuffered, as yet. set it to
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* single character buffering (to avoid a malloc() of a
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* stream buffer).
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*/
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(void) setvbuf(stderr, NULL, _IONBF, 0);
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fprintf(stderr, _assertstring, expr, filename, lineno);
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fflush(stderr);
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abort();
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}
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