FBB::X2a(3bobcat)
NAME
FBB::X2a - Objects performing x-to-Ascii conversions
SYNOPSIS
#include <bobcat/x2a>
Linking option: -lbobcat
DESCRIPTION
FBB:X2a objects convert values of any (insertable) type to text. The returned text is automatically made available as a standard C++ string.
NAMESPACE
FBB
All constructors, members, operators and manipulators, mentioned in
this man-page, are defined in the namespace FBB.
INHERITS FROM
std::ostringstream
CONSTRUCTORS
- o X2a(T const &value):
- In this constructor T may be any type that can be inserted into an o[string]stream.
- o X2a(double value, size_t behind):
- Double value is truncated to behind digits behind the decimal dot. If a value doesn't occupy behind digits behind the decimal point, then missing digits are added as 0. For example, a value of 7.1, will be displayed as 7.10 if two digits behind the decimal dot are requested. A value of 7 will be displayed as 7.00.
- o X2a(double value, size_t width, size_t behind, std::ios::fmt
- flags flags = std::ios::right): The value is displayed over width character positions, extending the amount if the value so requires. The converted value is placed right-aligned into the field of width characters. The copy constructor is available as well.
STATIC MEMBER FUNCTION
- o bool lastFail():
- This member returns true if the last conversion failed (i.e.,
the object's fail() member returned true and returns false otherwise). This member allows checks on the success of the
extraction/conversion using anonymous A2x objects. The member
also returns true when no conversions have as yet been performed.
Note that this member is a thread-unsafe static member: in a multithreaded program locks may be required to ensure that the proper conversion result is inspected.
MEMBER FUNCTIONS
All members of std::ostringstream are available, as FBB::X2a inherits
from this class. In particular ostringstream::str() can be used to
obtain the contents of an X2a object's text buffer.
OVERLOADED OPERATORS
- o operator std::ostream &operator<<(std::ostream &ostr, X2a const
- &x2a):
This conversion operator inserts the textual representation of the x2a parameter value into the provided ostream. - o operator std::string const() const:
- : this conversion operator returns the information stored inside the FBB::X2a object. The standard overloaded assignment operator is available as well.
EXAMPLE
string is(X2a(5)); // initializes `is' with "5"
string ds(X2a(5.25)); // initializes `ds' with "5.25"
- cout << X2a(7.0 / 3, 4) << endl;
- // display a value using 4 digits behind the // decimal dot.
- cout << X2a(7.0 / 3, 8, 4) << endl;
- // display a value over 8 positions, right // adjusted, 4 digits behind the decimal dot.
- cout << X2a(7.0 / 3, 8, 4, std::ios::left) << endl;
- // display a value over 8 positions, left
// adjusted, 4 digits behind the decimal dot.
FILES
bobcat/x2a - defines the class interface
SEE ALSO
BUGS
None Reported.
DISTRIBUTION FILES
o bobcat_2.08.01-x.dsc: detached signature;
o bobcat_2.08.01-x.tar.gz: source archive;
o bobcat_2.08.01-x_i386.changes: change log;
- o libbobcat1_2.08.01-x_*.deb: debian package holding the
- libraries;
- o libbobcat1-dev_2.08.01-x_*.deb: debian package holding the
- libraries, headers and manual pages;
- o http://sourceforge.net/projects/bobcat: public archive location;
BOBCAT
Bobcat is an acronym of `Brokken's Own Base Classes And Templates'.
COPYRIGHT
This is free software, distributed under the terms of the GNU General
Public License (GPL).
AUTHOR
- Frank B. Brokken (f.b.brokken@rug.nl).