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madcow · 04-13-2004, 07:32 PM

Hello all,
I have a c program that is doing a few things with a MySQL database and I found a piece of code written in C++ to determine the amount of CPU usage on my machine. I would like to call the function written in C++ in my C program and then write this to the database, compiling goes fine until the linker fails saying:

Linking...
net_sql.obj : error LNK2001: unresolved external symbol _GetCpuUsage
release/netsql.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

Any idea why this is happening? Is there some way to do what I am trying to do?

I'm using Microsoft Visual C++ 6. The Cpu usage code is not a lib or dll, just cpp files.

04-13-2004, 07:32 PM	#1 (permalink)
madcow Crazy Location: The state of denial	[C and C++] Calling C++ function from c Hello all, I have a c program that is doing a few things with a MySQL database and I found a piece of code written in C++ to determine the amount of CPU usage on my machine. I would like to call the function written in C++ in my C program and then write this to the database, compiling goes fine until the linker fails saying: Linking... net_sql.obj : error LNK2001: unresolved external symbol _GetCpuUsage release/netsql.exe : fatal error LNK1120: 1 unresolved externals Error executing link.exe. Any idea why this is happening? Is there some way to do what I am trying to do? I'm using Microsoft Visual C++ 6. The Cpu usage code is not a lib or dll, just cpp files.