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parameterlist/test/XML/cxx_main.cpp
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4// Teuchos: Common Tools Package
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41
43#include "Teuchos_XMLObject.hpp"
47#include "Teuchos_Version.hpp"
48#include <fstream>
49
50using std::string;
54
55/* Test of Teuchos XML handling classes */
56
57int main(int argc, char** argv)
58{
59 std::cout << Teuchos::Teuchos_Version() << std::endl << std::endl;
60
61 Teuchos::GlobalMPISession mpiSession(&argc, &argv);
62
63 try
64 {
65 /* create an XML object */
66 XMLObject problem("Problem");
67 XMLObject solver("Solver");
68 XMLObject prec("Preconditioner");
69
70 solver.addAttribute("type", "gmres");
71 solver.addInt("maxiters", 1000);
72 solver.addInt("restarts", 100);
73 solver.addDouble("tol", 1.0e-10);
74
75 solver.addChild(prec);
76
77 prec.addAttribute("type", "ILUk");
78 prec.addInt("k", 2);
79
80 problem.addChild(solver);
81
82 int foundIndex = problem.findFirstChild("Solver");
83 if(foundIndex == -1)
84 {
85 std::cerr << "Find child didn't find the child!"
86 <<std::endl << std::endl;
87 return -1;
88 }
89
90 const XMLObject foundChild = problem.getChild(foundIndex);
91 if(foundChild.getTag() != solver.getTag())
92 {
93 std::cerr << "Find child found the wrong tag!" << std::endl <<
94 "Found index was: " << foundIndex << std::endl <<
95 std::endl << std::endl;
96 return -1;
97 }
98
99 if(problem.findFirstChild("NON EXSISTENT CHILD") != -1){
100 std::cerr << "First first child didn't return -1 when it was "
101 "suppose to!" <<std::endl << std::endl;
102 return -1;
103 }
104
105 std::string str = problem.toString();
106 std::cerr << str << std::endl;
107
108 /* parse XML in a std::string */
109 StringInputSource src(str);
110 XMLObject reread = src.getObject();
111
112 std::cerr << reread << std::endl;
113
114 /* write to a file, and then read and parse the file */
115 std::ofstream of("tmp.xml");
116 of << reread << std::endl;
117
118 FileInputSource fileSrc("tmp.xml");
119 XMLObject fileXML = fileSrc.getObject();
120
121 std::cerr << fileXML << std::endl;
122
123 return 0;
124 }
125 catch(std::exception& e)
126 {
127 std::cerr << e.what() << std::endl;
128 }
129}
Teuchos header file which uses auto-configuration information to include necessary C++ headers.
Definition of XMLInputSource derived class for reading XML from a file.
A MPI utilities class, providing methods for initializing, finalizing, and querying the global MPI se...
Definition of XMLInputSource derived class for reading XML from a std::string.
An object representation of a subset of XML data.
Instantiation of XMLInputSource class for reading XML from a file.
Initialize, finalize, and query the global MPI session.
Instantiation of XMLInputSource class for reading XML from a std::string.
XMLObject getObject() const
Get an object by invoking the TreeBuildingXMLHandler on the input data.
Representation of an XML data tree. XMLObject is a ref-counted handle to a XMLObjectImplem object,...
void addChild(const XMLObject &child)
Add a child node to the node.
void addDouble(const std::string &name, double val)
Add a double as an attribute.
const std::string & getTag() const
Return the tag of the current node.
std::string toString() const
Represent this node and its children as a std::string.
void addInt(const std::string &name, int val)
Add an int as an attribute.
void addAttribute(const std::string &name, T value)
Lookup whether or not Doubles are allowed.
const XMLObject & getChild(int i) const
Return the i-th child node.
int findFirstChild(std::string tagName) const
Returns the index of the first child found with the given tag name. Returns -1 if no child is found.
int main()
Definition: evilMain.cpp:75
std::string Teuchos_Version()