misc/quazip/quacrc32.cpp
author koda
Sun, 02 Oct 2011 00:57:04 +0200
changeset 6078 8c0cc07731e5
parent 5752 ea95ee97c805
permissions -rw-r--r--
headers cleanup, converted some function-only sources into proper class method files, more use of OOP power, removed some 'respondsToSelector' calls, moved defines into their own header, more use of objc categories

#include "quacrc32.h"

#include "zlib.h"

QuaCrc32::QuaCrc32()
{
	reset();
}

quint32 QuaCrc32::calculate(const QByteArray &data)
{
	return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() );
}

void QuaCrc32::reset()
{
	checksum = crc32(0L, Z_NULL, 0);
}

void QuaCrc32::update(const QByteArray &buf)
{
	checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() );
}

quint32 QuaCrc32::value()
{
	return checksum;
}