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C/C++ Guide

Thursday, July 8, 2004 by digitalpeer, updated Wednesday, August 18, 2004

Differences Between C and C++

• In C++, all functions must have a protype. Protoypes are optional in C.
• Only in C, is a character constant automatically elevated to an integer.
• Only in C, may a global variable be declared more than once.
• Only in C, may the main() be invoked from within the program.

GUI Development

wxWidgets
Only the best cross platform open source GUI framework if you ask me.

STL Resources

STL online documentation

More STL documentation

Probably the best portable STL there is.

Excellent STL documation and source code reference. Thank the guys at SGI for this.

Random Resources

Ever wanted to know how to directly read and write to a process. For example, if you wanted to run a small utility and get it's output, particularly on a Linux machine. pStreams

All about Function Pointers
Great C++ Resource
The Quick on why C++ is better than C

Documenting Source

Document your C/C++ Source with doxygen

C++ and Regular Expressions

http://bazar.conectiva.com.br/~niemeyer/projects/regexx/
PCRE - Perl Compatible Regular Expressions

C++ Exceptions

Bleeding Edge Exceptions
C++ Documentation
Error Handling with C++ Exceptions, Part 2

GNU Extentions

While you should never use something non ANSI/ISO standard, it's nice to know what's out there incase you do run into something that looks a little odd.

C++ Signatures

An interesting GNU extension is the ability to use ranges in case statements:

print_char_class (char c)
{
  switch (c)
    {
    case 'a'..'z': printf ("lower casen"); break;
    case 'A'..'Z': printf ("upper casen"); break;
    case '0'..'9': printf ("digitn"); break;
    default:       printf ("othern");
    }
}