Make Executable File

Make Executable File

[Mike White]

I'm just starting to learn C++ and the G++ compiler.  I have been 
able to write and compile a couple of programs successfully, but 
for the life of me I can't find out how to make the resulting object file 
an executable.  While using DJGPP through DOS it creates the 
executables automatically.  The problem I"m having is using G++ 
under Linux.  I've read man pages and info files until my eyes 
crossed.  Could someone please help me get my eyes back in 
focus by pointing me to the information I need?


J. Michael White
Lorena, Texas
jmwhite@mail.hot1.net
http://genealogy.org/~mwhite

Re: Make Executable File

[Jan Dvorak]

On Thu, 25 Nov 1999, Mike White wrote:

> I'm just starting to learn C++ and the G++ compiler.  I have been 
> able to write and compile a couple of programs successfully, but 
> for the life of me I can't find out how to make the resulting object file 
> an executable.  While using DJGPP through DOS it creates the 
> executables automatically.  The problem I"m having is using G++ 
> under Linux.  I've read man pages and info files until my eyes 
> crossed.  Could someone please help me get my eyes back in 
> focus by pointing me to the information I need?
> 
> 
> J. Michael White
> Lorena, Texas
> jmwhite@mail.hot1.net
> http://genealogy.org/~mwhite
> 

Well, this can be caused by many things. First, make sure, that code is
ok, and compiler compiled it ok (no error messages etc). Second, make sure
that you don't set the '-c' option (which means stop after compile and DO
NOT link). Third, look if you have included '-o' option - the name of
resulting executable. (Without that, the executable will be named
'a.out') So, with all this the syntax for compiling should be:

g++ program.c -o program

This will create file 'program'. You can run it by typing:

./program

(remember, that in linux you nedd to type leading './' when you are
running programs which are in current directory (and that directory is not
in path)

Happy coding

Jan Dvorak

Re: Make Executable File

[Jan Dvorak]

On Thu, 25 Nov 1999, Mike White wrote:

> I'm just starting to learn C++ and the G++ compiler.  I have been 
> able to write and compile a couple of programs successfully, but 
> for the life of me I can't find out how to make the resulting object file 
> an executable.  While using DJGPP through DOS it creates the 
> executables automatically.  The problem I"m having is using G++ 
> under Linux.  I've read man pages and info files until my eyes 
> crossed.  Could someone please help me get my eyes back in 
> focus by pointing me to the information I need?
> 
> 
> J. Michael White
> Lorena, Texas
> jmwhite@mail.hot1.net
> http://genealogy.org/~mwhite
> 

Well, this can be caused by many things. First, make sure, that code is
ok, and compiler compiled it ok (no error messages etc). Second, make sure
that you don't set the '-c' option (which means stop after compile and DO
NOT link). Third, look if you have included '-o' option - the name of
resulting executable. (Without that, the executable will be named
'a.out') So, with all this the syntax for compiling should be:

g++ program.c -o program

This will create file 'program'. You can run it by typing:

./program

(remember, that in linux you nedd to type leading './' when you are
running programs which are in current directory (and that directory is not
in path)

Happy coding

Jan Dvorak

Make Executable File

[Mike White]

I'm just starting to learn C++ and the G++ compiler.  I have been 
able to write and compile a couple of programs successfully, but 
for the life of me I can't find out how to make the resulting object file 
an executable.  While using DJGPP through DOS it creates the 
executables automatically.  The problem I"m having is using G++ 
under Linux.  I've read man pages and info files until my eyes 
crossed.  Could someone please help me get my eyes back in 
focus by pointing me to the information I need?


J. Michael White
Lorena, Texas
jmwhite@mail.hot1.net
http://genealogy.org/~mwhite