71 lines
3.1 KiB
C++
71 lines
3.1 KiB
C++
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// fig04_11.cpp
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// Using the miniz-cpp header-only library to write and read a ZIP file.
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#include <iostream>
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#include <string>
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#include "zip_file.hpp"
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using namespace std;
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int main() {
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cout << "Enter a ZIP file name: ";
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string zipFileName;
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getline(cin, zipFileName); // inputs a line of text
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// string literals separated only by whitespace are combined
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// into a single string by the compiler
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string content{
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"This chapter introduces all but one of the remaining control "
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"statements--the for, do...while, switch, break and continue "
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"statements. We explore the essentials of counter-controlled "
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"iteration. We use compound-interest calculations to begin "
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"investigating the issues of processing monetary amounts. First, "
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"we discuss the representational errors associated with "
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"floating-point types. We use a switch statement to count the "
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"number of A, B, C, D and F grade equivalents in a set of "
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"numeric grades. We show C++17's enhancements that allow you to "
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"initialize one or more variables of the same type in the "
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"headers of if and switch statements."};
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cout << "\ncontent.length(): " << content.length();
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miniz_cpp::zip_file output; // create zip_file object
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// write content into a text file in output
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output.writestr("intro.txt", content); // create file in ZIP
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output.save(zipFileName); // save output to zipFileName
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miniz_cpp::zip_file input{zipFileName}; // load zipFileName
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// display input's file name and directory listing
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cout << "\n\nZIP file's name: " << input.get_filename()
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<< "\n\nZIP file's directory listing:\n";
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input.printdir();
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// display info about the compressed intro.txt file
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miniz_cpp::zip_info info{input.getinfo("intro.txt")};
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cout << "\nFile name: " << info.filename
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<< "\nOriginal size: " << info.file_size
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<< "\nCompressed size: " << info.compress_size;
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// original file contents
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string extractedContent{input.read(info)};
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cout << "\n\nOriginal contents of intro.txt:\n"
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<< extractedContent << "\n";
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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*************************************************************************/
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