FBB::level(3bobcat) | Log-manipulator | FBB::level(3bobcat) |
FBB::level - Manipulator setting the log-level of FBB::Log objects
#include <bobcat/level>
Linking option: -lbobcat
An FBB::level object is used to specify insertion `forces’ of information that is inserted into FBB::Log objects. When inserted into Log objects it defines the `force’ of subsequent insertions (or write calls) into those Log objects.
Conversely, Log objects may specify insertion `resistances’ through their setLevel members. If the level’s `force’ is equal to or exceeds the Log object’s `resistance’ then the insertion is performed, otherwise the insertion is ignored. A single insertion statement may contain multiple level calls. If so, then each level call updates the `force’ of insertions following the level call.
By default insertions into Log objects not preceded by level insertions are completed.
When a level object is inserted into another kind of std::ostream object the level object performs no actions.
FBB
All constructors, members, operators and manipulators, mentioned in this
man-page, are defined in the namespace FBB.
-
Copy and move constructors (and assignment operators) are available.
#include <iostream> #include <iomanip> #include <bobcat/log> #include <bobcat/level> using namespace std; using namespace FBB; int main() { // Log &log = Log::initialize("&1"); // uses the static Log object
Log log; // explicitly defining a Log object
log.open("/tmp/out"); // or at once: Log log{ "/tmp/out" }
log << "This message is written to cout" << nl <<
setw(16) << ’ ’ << "occupying multiple lines\n";
log.off();
log << "This message is not shown\n";
log << "This message is not shown\n";
log << fnl;
log << "This message is not shown\n";
log.on(2);
log << "This message is shown\n";
log << level(0) << "not shown" << level(2) << "shown at level 2\n";
log << level(3) << "at level(3)" << level(1) << "not shown" << fnl;
log << "separate new line\n";
log << level(2) << "in business again\n";
log << "final line\n"; }
bobcat/level - defines the class interface.
None Reported.
Bobcat is an acronym of `Brokken’s Own Base Classes And Templates’.
This is free software, distributed under the terms of the GNU General Public License (GPL).
Frank B. Brokken (f.b.brokken@rug.nl).
2005-2020 | libbobcat-dev_5.07.00 |