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79 lines
2.0 KiB
79 lines
2.0 KiB
/*++
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Copyright (c) 1993 Digital Equipment Corporation
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Module Name:
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tzermem.c
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Abstract:
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This module implements a test of the operation of the RtlZeroMemory
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function by running an exhaustive test of every case of string offset
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and length up to and a little beyond one 32-byte cache line. This
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represents several thousand test cases. It is assumed any bugs that
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exist will be found within this range. If only the error count summary
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is desired, type "tzermem > nul" instead.
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Author:
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Thomas Van Baak (tvb) 13-Jan-1993
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Environment:
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User mode.
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Revision History:
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--*/
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#include <nt.h>
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#include <ntrtl.h>
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#include <stdio.h>
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#include "localrtl.h"
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#define BUFFER_SIZE (MAX_MARGIN + MAX_OFFSET + MAX_LENGTH + MAX_MARGIN)
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UCHAR Buffer1[BUFFER_SIZE];
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UCHAR Buffer2[BUFFER_SIZE];
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void
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_CRTAPI1
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main()
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{
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ULONG ErrorCount;
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ULONG Length;
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ULONG Offset;
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ULONG Result;
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ULONG TestCases;
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fprintf(stderr, "Testing RtlZeroMemory\n");
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ErrorCount = 0;
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TestCases = 0;
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for (Offset = 0; Offset <= MAX_OFFSET; Offset += 1) {
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for (Length = 0; Length <= MAX_LENGTH; Length += 1) {
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FillPattern(Buffer1, BUFFER_SIZE);
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FillPattern(Buffer2, BUFFER_SIZE);
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LocalZeroMemory(&Buffer1[Offset], Length);
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RtlZeroMemory(&Buffer2[Offset], Length);
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Result = LocalCompareMemory(Buffer1, Buffer2, BUFFER_SIZE);
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TestCases += 1;
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if (Result != BUFFER_SIZE) {
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ErrorCount += 1;
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printf("ERROR: Offset = %d, Length = %d\n", Offset, Length);
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printf("Buffers differ starting at byte %d:\n", Result);
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printf("Buffer1 = <%*s>\n", BUFFER_SIZE, Buffer1);
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printf("Buffer2 = <%*s>\n", BUFFER_SIZE, Buffer2);
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printf("\n");
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}
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}
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}
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fprintf(stderr, "Test of RtlZeroMemory completed: ");
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fprintf(stderr, "%d test cases, %d errors found.\n", TestCases, ErrorCount);
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}
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