snappy 测试

#include "stdafx.h"
#include "snappy-c.h"
#include <assert.h>

#pragma comment(lib, "snappy32.lib")

int _tmain(int argc, _TCHAR* argv[])
{
    FILE* f = NULL;
    errno_t err = fopen_s(&f, "readme.txt", "rb");
    fseek(f, 0, SEEK_END);
    int fileSize = ftell(f);
    fseek(f, 0, SEEK_SET);
    char* source = new char[fileSize];
    int bufferLen = fileSize + 300;
    char* compressed = new char[bufferLen];
    fread(source, fileSize, 1, f);
    fclose(f);
    size_t length = bufferLen;
    snappy_status status = snappy_compress(source, fileSize, compressed, &length);
    delete source;
    char* uncompressed = new char[bufferLen];
    size_t uncompressedLength = bufferLen;
    status = snappy_uncompress(compressed, length, uncompressed, &uncompressedLength);
    assert(uncompressedLength == fileSize);
    delete compressed;
    delete uncompressed;
    return 0;
}