本文整理汇总了C++中HuffmanTree::compress方法的典型用法代码示例。如果您正苦于以下问题：C++ HuffmanTree::compress方法的具体用法？C++ HuffmanTree::compress怎么用？C++ HuffmanTree::compress使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类HuffmanTree的用法示例。
在下文中一共展示了HuffmanTree::compress方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: main
int main(int argc, char* argv[]) {
using namespace ptlmuh006;
if(argc != 4){
std::cout << "Incorrect usage." << std::endl;
std::cout << "Please use huffencode as follows:" << std::endl;
std::cout << "huffencode <option> <inputFilename> <outputFilename>" << std::endl;
std::cout << "\t___options:___" << std::endl;
std::cout << "\t -c compress data from inputFilename to outputFilename" << std::endl;
std::cout << "\t -x extract compressed data from inputFilename to outputFilename" << std::endl;
}else{
HuffmanTree* huff = new HuffmanTree;
std::string option = argv[1];
if(option == "-c"){
huff->compress(argv[2], argv[3]);
std::cout << "Compressed " << argv[2] << " into " << argv[3] << "." << std::endl;
}else if(option == "-x"){
huff->extract(argv[2], argv[3]);
std::cout << "Extracted from " << argv[2] << " into " << argv[3] << "." << std::endl;
}
delete huff;
}
return 0;
}示例2: main
int main(){
ifstream file;
file.open("Amazon_EC2.txt");
if(!file.is_open()) cout << "File not found";
//Create a vector of freqs
//256 for ascii values initialized to 0
vector<int> freq(256,0);
int c;
int count = 0;
while(file.good()){
count++;
c = file.get();
//End of file
if(c < 0) continue;
freq[c] = freq[c] + 1;
}
file.close();
/*
for(int i = 0; i < freq.size(); i++){
if(freq[i] != 0){
double ratio = ((double)freq[i]/(double)count)*100;
cout << (char)i << " " << ratio << endl;
}
}
*/
//Instantiate tree
HuffmanTree tree;
//Call create to make the tree
tree.create(freq);
//Create output file stream
ofstream outputFile("compressedFile.txt",ios::out);
stream out(outputFile);
//Open file to get letters to compress with path
ifstream file2;
file2.open("Amazon_EC2.txt");
//Call compress to write bits of each letter to the file
char z;
while(file2.good()){
z = (char)file2.get();
tree.compress(z, out);
}
file2.close();
outputFile.close();
cout << endl << "Outputfile Created: compressedFile.txt" << endl << endl;
return 0;
}