FBB::repeat - call a (member) function a fixed number of times
Contents
Bobcat
Bobcat is an acronym of `Brokken’s Own Base Classes And Templates’.
Bobcat Project Files
o https://fbb-git.gitlab.io/bobcat/: gitlab project page;
Debian Bobcat project files:
o libbobcat6: debian package containing the shared library, changelog and copyright note;
o libbobcat-dev: debian package containing the static library, headers, manual pages, and developer
info;
Bugs
Be careful when using overloaded functions, as the template argument resolution mechanism may be unable
to determine which function to call. If overloaded functions must be used, a static_cast is likely
required to disambiguate your intentions.
Copyright
This is free software, distributed under the terms of the GNU General Public License (GPL).
Description
The FBB::repeat function template allows a function or member function to be called a certain number of
times. The functions or member functions may define arguments. Arguments to these functions are specified
when repeat is called, and are perfectly forwarded by the repeat function template to the (member)
function called by repeat.
The first argument of the repeat function template defines the number of times the (member) function must
be called.
The FBB::repeat function template are defined inline, allowing the compiler to `optimize away’ the repeat
function call itself.
Examples
#include <iostream>
#include <iterator>
#include <algorithm>
#include <bobcat/repeat>
using namespace std;
using namespace FBB;
class Object
{
public:
void member(int argc, char **argv) const;
void member2(size_t &rept, int argc, char **argv);
};
void Object::member(int argc, char **argv) const
{
cout << "member called\n";
copy(argv, argv + argc, ostream_iterator<char const *>(cout, "\n"));
}
void Object::member2(size_t &rept, int argc, char **argv)
{
cout << "member2 called, iteration " << rept++ << "\n";
copy(argv, argv + argc, ostream_iterator<char const *>(cout, "\n"));
}
void fun()
{
cout << "Fun called\n";
}
int main(int argc, char **argv)
{
Object object;
cout << "\n"
"*** The number of arguments determines the repeat-count ***\n\n";
cout << "Fun without arguments:\n";
repeat(argc, fun);
cout << "Object receiving argc and argv:\n";
repeat(argc, object, &Object::member, argc, argv);
cout << "Object receiving argc and argv, showing the iteration count:\n";
size_t count = 0;
repeat(argc, object, &Object::member2, count, argc, argv);
Object const obj;
cout << "Const Object receiving argc and argv:\n";
repeat(argc, obj, &Object::member, argc, argv);
}
Files
bobcat/repeat - defines the class interface
Inherits From
-
Name
FBB::repeat - call a (member) function a fixed number of times
Namespace
FBB
All constructors, members, operators and manipulators, mentioned in this man-page, are defined in the
namespace FBB.
Repeat Function Template
The repeat function template is declared as:
template <typename Counter, typename First, typename ...Params>
void repeat(Counter counter, First &&first, Params &&...params);
In this declaration,
o Counter represents the counter’s type. Usually an int or size_t. When calling repeatcounter must
be initialized to the number of times repeat must call the (member) function (see below);
o First represents the prototype of a function or the name of a class. name of a class. Likewise,
first either is the address (name) of the function to be called or the name of an object of class
type First. In the latter case the object may or may not be a const object.
o ...Params represents the set of parameter types of arguments which must be perfectly forwarded to
the called function. If first represents a class type object, the first argument must be the
address of a member function of the class First.
See Also
bobcat(7)
Synopsis
#include<bobcat/repeat>
