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Added to the sample, demonstrating FileStorage, how to read/write data from/to std::string.

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This commit is contained in:
Leonid Beynenson 2012-06-28 10:32:34 +00:00
parent 42d830ec23
commit 7fc18fe146
1 changed files with 31 additions and 1 deletions
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32
samples/cpp/filestorage.cpp
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@ -150,7 +150,37 @@ int main(int ac, char** av)
}
cout << "Try opening " << filename << " to see the serialized data." << endl;
cout << "Try opening " << filename << " to see the serialized data." << endl << endl;
//read from string
{
cout << "Read data from string\n";
string dataString =
"%YAML:1.0\n"
"mdata:\n"
" A: 97\n"
" X: 3.1415926535897931e+00\n"
" id: mydata1234\n";
MyData m;
FileStorage fs(dataString, FileStorage::READ | FileStorage::MEMORY | FileStorage::FORMAT_YAML);
cout << "attempting to read mdata_b from string\n"; //Show default behavior for empty matrix
fs["mdata"] >> m;
cout << "read mdata\n";
cout << m << endl;
}
//write to string
{
cout << "Write data to string\n";
FileStorage fs(filename, FileStorage::WRITE | FileStorage::MEMORY | FileStorage::FORMAT_YAML);
cout << "writing MyData struct\n";
MyData m(1);
fs << "mdata" << m;
cout << m << endl;
string createdString = fs.releaseAndGetString();
cout << "Created string:\n" << createdString << "\n";
}
return 0;
}