• "Max Veen" <marove wanadoo.nl> Mar 17 2004
• "Matthew" <matthew stlsoft.org> Mar 18 2004
• "Max Veen" <marove wanadoo.nl> Mar 23 2004
• "Matthew" <matthew stlsoft.org> Mar 24 2004

Hello everyone,

I'am trying to create a thread with _beginthread() that uses a C-runtime
library. I have included <process.h> in my program. After compiling with
DMC, I got the message 'Undefined identifier _beginthread and undefined
identifier _endthread'. How is that possible?

When I explicitely declare the _beginthread() and _endthread functions in my
program, the DMC compiler (V8.38) compiles with no errors and warnings.
But after building the program the Output window gives 2 errors: 'Symbol
Undefined ?_beginthreadxxxxx(0 and Symbol Undefined ?_endthreadxxxxxxx().
So, what could be the reason for these errors?
Do I have to include a special library in my project, so the build process
will then be fine?
I can't come out of this problem. Is there anyone who has experience with
these thread functions?

Help would be greatly appriciated!

Regards,

Max Veen

to use the functions in process.h you must define _MT, via the appropriate
option. I assume they're the same as with VC++, i.e. -MD, -MT, -MDd, -MTd,
but I can't say for sure off the top of my head. Check out the DMC++ website

"Max Veen" <marove wanadoo.nl> wrote in message
news:c394en$107h$1 digitaldaemon.com...
 Hello everyone,

 I'am trying to create a thread with _beginthread() that uses a C-runtime
 library. I have included <process.h> in my program. After compiling with
 DMC, I got the message 'Undefined identifier _beginthread and undefined
 identifier _endthread'. How is that possible?

 When I explicitely declare the _beginthread() and _endthread functions in


 program, the DMC compiler (V8.38) compiles with no errors and warnings.
 But after building the program the Output window gives 2 errors: 'Symbol
 Undefined ?_beginthreadxxxxx(0 and Symbol Undefined ?_endthreadxxxxxxx().
 So, what could be the reason for these errors?
 Do I have to include a special library in my project, so the build process
 will then be fine?
 I can't come out of this problem. Is there anyone who has experience with
 these thread functions?

 Help would be greatly appriciated!

 Regards,

 Max Veen

Matthew, what kind of option do you mean when using _MT? Do I have to define
this in a headerfile?
Maybe you can give me an example.

Best regards,
-- 
Max Veen

It would be a command-line build. Unless it is defined, process.h will not
declare the CRT threading functions.

AFAICT, DMC++ goes along with the VC++ standard of _MT

"Max Veen" <marove wanadoo.nl> wrote in message
news:c3pk53$1ce8$1 digitaldaemon.com...
 Matthew, what kind of option do you mean when using _MT? Do I have to


 this in a headerfile?
 Maybe you can give me an example.

 Best regards,
 -- 
 Max Veen