We need more information.

What is the type of ISGN?
What is the SIGN? Is it a function? A macro? A class member?

- Barry

Actually it's not obvious what sqrt or cos is, and it can be tricky to track down. The problem is that before the line of interest, there may be a definition like:

float sqrt = 1.41423;

that makes sqrt a variable instead of a function, which would cause the sort of error you are seeing. The definition may be hidden in a header file brought in by an include directive, and may be conditional on the particular compiler because of #if or #ifdef directives. Or it could be a macro.

Fortunately, there is a way to track down the definition or macro replacement games. Run icc has you normally would, but add the option "-E". This will cause the compiler to do all #include processing and macro substiution, and send the result to standard output. So given a source file like a.c, run "icc -E a.c >a.txt". Then bring up a.txt in an editor and find the line that is causing problems. Look for sqrt in that file and see how it is defined. If you cannot find it, it was a macro, and instead look for the line corresponding to where the compiler complained. The text file can be large, so one trick I use is to mark the region of interest with a strange variable name. E.g., you might try writing "Pz = sqrt(Pz2); {int banana=0;}" and look for "banana" in the output file. The text file will also have lines like:

# 37 "/usr/include/stdio.h" 1 3

that indicate from which other files lines are coming from. That line says that subsequent lines are from /usr/include/stdio.h , starting at line 37 of that file. I forget what the "1 3" means.

Hi Newport_j,

If you still have problems after upgrading to update 6 or later, let me know, but I think that's likely the problem here as well.