12-11-2010
Mainly, int is a primitive, not a Cclass, so you cannot new it. You can look for a Class Integer or the like, or write a class holding an int, or call malloc(), calloc() or realloc() using an extern "C" around the include files. Or you can just declare a not automatic int: global, file static or subroutine static, and pass the pointer &integer_name into your variable.
An extern "C" {} block is just for linkage information -- prototypes, like #includes, not for actual execution. It says to link the names without mangling for argument and return type checking. C++ was originally just a C preprocess, so the mangling achieved the type checking.
Conversely, if you are trying to call C++ libs in a C main or other code, the C main or other code would have extern "C++" {} blocks for the prototypes of the lib, usually in a #include for that lib.
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LEARN ABOUT OPENSOLARIS
lib300
libplot(3LIB) Interface Libraries libplot(3LIB)
NAME
libplot, lib300, lib300s, lib4014, lib450, libvt0 - graphics interface libraries
SYNOPSIS
cc [ flag... ] file... -lplot [ library... ]
#include <plot.h>
DESCRIPTION
Functions in this library generate graphics output.
INTERFACES
The shared object libplot.so.1 provides the public interfaces defined below. See Intro(3) for additional information on shared object
interfaces.
arc box
circle closepl
closevt cont
erase label
line linemod
move openpl
openvt point
space
FILES
/usr/lib/libplot.so.1 shared object
/usr/lib/64/libplot.so.1 64-bit shared object
/usr/lib/lib300.so.1 shared object
/usr/lib/64/lib300.so.1 64-bit shared object
/usr/lib/lib300s.so.1 shared object
/usr/lib/64/lib300s.so.1 64-bit shared object
/usr/lib/lib4014.so.1 shared object
/usr/lib/64/lib4014.so.1 64-bit shared object
/usr/lib/lib450.so.1 shared object
/usr/lib/64/lib450.so.1 64-bit shared object
/usr/lib/libvt0.so.1 shared object
/usr/lib/64/libvt0.so.1 64-bit shared object
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsl (32-bit) |
+-----------------------------+-----------------------------+
| |SUNWcslx (64-bit) |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
SEE ALSO
pvs(1), Intro(3), attributes(5)
SunOS 5.11 13 Jun 2003 libplot(3LIB)