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Location:
ballarat
Registered:
April 2003
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anyone have much experience with c?
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Fri, 11 June 2004 05:46
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a call to comp nerds 
i have a function in one file (it has no header file) and another function in a different file that i want to call the first function.
i have tried making the second function extern but no luck, always getting an 'undeclared identifier' complier error.
i have mainly worked with c++, so lonely functions that are not attached to an object i am a little unfamilar with.
any help?
cheers
ehendrikd
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Location:
South Australia
Registered:
July 2002
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Re: anyone have much experience with c?
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Fri, 11 June 2004 15:37
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Are you using a makefile or not?
Your best bet is to have somewhere in the file that calls the first function (function prototype) try a line like this ->
extern type nameoffunc(blah, blah, blah);
you should be able to use that function anywhere within that file.
then when you link the thing, make sure you have something like
gcc -c firstfile.c
gcc -c filethatcallsfirstfile.c
gcc -o firstfile.o filethatcallsfirstfile.o
geddit?
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Location:
Wahroonga
Registered:
June 2003
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Re: anyone have much experience with c?
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Fri, 11 June 2004 22:35
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Bringing back bad memories...... no .......must get out of here.
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Location:
South Australia
Registered:
July 2002
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Re: anyone have much experience with c?
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Sat, 12 June 2004 00:26
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lol - seriously what's wrong with C? Are you an 'object oriented' code-monkey or something  Or you just left the whole programming thing when you realised it was a totally frustrating exercise in human torture?
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Location:
ballarat
Registered:
April 2003
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Re: anyone have much experience with c?
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Mon, 14 June 2004 23:47
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thanks for the replies guys 
the situation is i am intergrating a f2c (fortran to c) generated c function into a vc++ 6.0 dll. i have everything compiling except that it cant find the c function that is in its own file. i have tried using a header file that contains the function prototype but no luck. i have made a test dll where the lone c function can be found, so i think the problem is perhaps in the order that it links.
joy joy joy
cheers
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Location:
South Australia
Registered:
July 2002
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Re: anyone have much experience with c?
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Tue, 15 June 2004 02:08
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i have everything compiling except that it cant find the c function that is in its own file
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That just sounds evil! If you put a prototype at the very top of the file (yeah most people use header files but you don't have to) then this shouldn't happen!
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Location:
Canberra
Registered:
August 2003
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Re: anyone have much experience with c?
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Tue, 15 June 2004 02:27
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create a shell object with one method?
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