Jpp 19.3.0-rc.2
the software that should make you happy
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JNullStream.cc
Go to the documentation of this file.
1
2#include <string>
3#include <iostream>
4#include <iomanip>
5
8
9#include "Jeep/JParser.hh"
10#include "Jeep/JMessage.hh"
11
12
13/**
14 * \file
15 *
16 * Example program to test JANG::JFileSream and JLANG::JNullStream classes.
17 * \author mdejong
18 */
19int main(int argc, char **argv)
20{
21 using namespace std;
22 using namespace JPP;
23
24 bool use_cin;
25 bool use_cout;
26 int debug;
27
28 try {
29
30 JParser<> zap("Example program to test file streaming.");
31
32 zap['c'] = make_field(use_cin);
33 zap['C'] = make_field(use_cout);
34 zap['d'] = make_field(debug) = 0;
35
36 zap(argc, argv);
37 }
38 catch(const exception &error) {
39 FATAL(error.what() << endl);
40 }
41
42
43 JFileInputStream is(STDIN_FILENO);
44 JFileOutputStream os(STDOUT_FILENO);
45
46 istream in (use_cin ? cin .rdbuf() : is.rdbuf());
47 ostream out(use_cout ? cout.rdbuf() : os.rdbuf());
48
49 for ( ; ; ) {
50
51 string buffer;
52
53 out << "> " << flush;
54 getline(in,buffer);
55
56 if (buffer != "") {
57
58 cout << "out -> <" << flush; out << buffer << flush; cout << ">" << endl;
59 cout << "null -> <" << flush; null << buffer << flush; cout << ">" << endl;
60
61 } else {
62
63 break;
64 }
65 }
66}
General purpose messaging.
#define FATAL(A)
Definition JMessage.hh:67
int debug
debug level
Definition JSirene.cc:72
int main(int argc, char **argv)
Utility class to parse command line options.
#define make_field(A,...)
macro to convert parameter to JParserTemplateElement object
Definition JParser.hh:2142
Streaming of input.
Streaming of output.
Utility class to parse command line options.
Definition JParser.hh:1698
This name space includes all other name spaces (except KM3NETDAQ, KM3NET and ANTARES).