syntax

ghe1 · 02-12-2002, 02:41 PM

What are the major differences of the linux syntax in comparision to windows syntax while programming?

starX · 02-12-2002, 10:36 PM

In Java, and Perl, very little.

In C, maybe nothing, maybe a lot, it depends on what you're trying to do. By an large the differences come when you use libraries that are unique to a certain operating system.

If you gave me a better idea of what you're trying to do, I can give you a more definite answer,

starX
www.axisoftime.com

ghe1 · 02-13-2002, 08:23 AM

My situation is this: I have a c program that determines the free disk space on a drive. Within this code, I need to add a function that is called before the rest of the code executes to determine whether or not I am in a windows environment or in a linux environment. I also have code for the unix side, "statvfs" that determines the disk space.

**Salem** · 02-13-2002, 01:30 PM

> to determine whether or not I am in a windows environment or in a linux environment.
No such function exists

You need to compile the code with conditional compilation directives, like so

Code:

#ifdef LINUX
space = statvfs();
#elif WINDOWS
space = GetDiskFreeSpace();  // or whatever
#else
#error Not LINUX or WINDOWS
#endif

Then you compile it for LINUX using
gcc -DLINUX prog.c

and for windows
cl -DWINDOWS prog.c

ghe1 · 02-13-2002, 01:53 PM

Thanks for the advice. That is what I have been needing!

02-12-2002, 02:41 PM	#1
ghe1 Registered User Join Date: Feb 2002 Posts: 26	syntax What are the major differences of the linux syntax in comparision to windows syntax while programming?
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02-12-2002, 10:36 PM	#2
starX Registered User Join Date: Aug 2001 Posts: 202	In Java, and Perl, very little. In C, maybe nothing, maybe a lot, it depends on what you're trying to do. By an large the differences come when you use libraries that are unique to a certain operating system. If you gave me a better idea of what you're trying to do, I can give you a more definite answer, starX www.axisoftime.com
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02-13-2002, 08:23 AM	#3
ghe1 Registered User Join Date: Feb 2002 Posts: 26	My situation is this: I have a c program that determines the free disk space on a drive. Within this code, I need to add a function that is called before the rest of the code executes to determine whether or not I am in a windows environment or in a linux environment. I also have code for the unix side, "statvfs" that determines the disk space.
ghe1 is offline

02-13-2002, 01:30 PM	#4
Salem and the hat of Jobseeking Join Date: Aug 2001 Location: The edge of the known universe Posts: 21,710	> to determine whether or not I am in a windows environment or in a linux environment. No such function exists You need to compile the code with conditional compilation directives, like so Code: #ifdef LINUX space = statvfs(); #elif WINDOWS space = GetDiskFreeSpace(); // or whatever #else #error Not LINUX or WINDOWS #endif Then you compile it for LINUX using gcc -DLINUX prog.c and for windows cl -DWINDOWS prog.c
Salem is offline

02-13-2002, 01:53 PM	#5
ghe1 Registered User Join Date: Feb 2002 Posts: 26	Thanks for the advice. That is what I have been needing!
ghe1 is offline

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