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我只是更新我的一个应用程序,我的解压方法出错。Zlib解压缩方法警告使用ios 64位体系结构
这是我遇到
Implicit conversion loses integer precision: 'unsigned long' to 'unit' (aka 'unsigned int')
警告这是代码及其对
stream.avail_in = len - stream.total_in;
发生线路,这是整个方法看起来像
#pragma mark - ZLib Compression Methods
// Returns the decompressed version if the zlib compressed input data or nil if there was an error
- (NSData*) dataByDecompressingData:(NSData*)data {
NSLog(@"%lu", (unsigned long)data.length);
Byte* bytes = (Byte*)[data bytes];
NSInteger len = [data length];
NSMutableData *decompressedData = [[NSMutableData alloc] initWithCapacity:COMPRESSION_BLOCK];
Byte* decompressedBytes = (Byte*) malloc(COMPRESSION_BLOCK);
z_stream stream;
int err;
stream.zalloc = (alloc_func)0;
stream.zfree = (free_func)0;
stream.opaque = (voidpf)0;
stream.next_in = bytes;
err = inflateInit(&stream);
CHECK_ERR(err, @"inflateInit");
while (true) {
stream.avail_in = len - stream.total_in;
stream.next_out = decompressedBytes;
stream.avail_out = COMPRESSION_BLOCK;
err = inflate(&stream, Z_NO_FLUSH);
[decompressedData appendBytes:decompressedBytes length:(stream.total_out-[decompressedData length])];
if(err == Z_STREAM_END)
break;
CHECK_ERR(err, @"inflate");
}
err = inflateEnd(&stream);
CHECK_ERR(err, @"inflateEnd");
free(decompressedBytes);
return decompressedData;
}
警告!=错误(虽然它*可能是一个指标) - 但是..它是否“工作”? – user2864740