Some questions regarding old if.c Post: 302930430

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Top Forums Programming Some questions regarding old if.c Post 302930430 by ongoto on Saturday 3rd of January 2015 11:29:38 PM

01-04-2015

Registered User

Part of an if statement can be to call (fork) an external function; e.g. sed. You could say a == (the results of) sed /something/ for example. ccode is just the name of a variable. Judging by the way it's used here, ccode could be described as a container for:

Quote:

The exit status or return code of a process in computer programming is a small number passed from a child process (or callee) to a parent process (or caller) ...

The child process will be running in it's own "shell" program space and then return it's status (success or failure).
return(ccode? 0 : 1); is a ternary expression. (You can look up ternary). ? indicates a test, 0 is returned if test is true, 1 if false. I think in this case, true would indicate no errors.

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LEARN ABOUT MOJAVE

libidl-2

libIDL-2.3(3)						 Introduction to Library Functions					     libIDL-2.3(3)

NAME

       libIDL-2 - IDL parsing library

DESCRIPTION

       The  libIDL  library provides an API for parsing CORBA Interface Definition Language (IDL) files and manipulating the resultant parse tree.
       libIDL is used by orbit-idl-2(1), the GNOME IDL compiler. No API documentation is currently supplied with the library.

FILES

       The following files are used by this application:

       /usr/lib/libIDL-2.so    IDL parsing shared library

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-------------------------------+
       |      ATTRIBUTE TYPE	     |	     ATTRIBUTE VALUE	     |
       +-----------------------------+-------------------------------+
       |Availability		     |SUNWgnome-component-arch-devel |
       +-----------------------------+-------------------------------+
       |Interface stability	     |External			     |
       +-----------------------------+-------------------------------+

SEE ALSO

       orbit-idl-2(1), libORBit-2(3)

NOTES

       Written by Mark McLoughlin, Sun Microsystems  Inc., 2003.

SunOS 5.10							    10 Jan 2003 						     libIDL-2.3(3)