REF: JVB GFTN-006<br>
File: <a href="acos_test.f90">acos_test.f90</a><br>
Example:<pre>
C:\gfortran_stuff\James\test\acos_test>gfortran -std=f95 acos_test.f90 -oacos_te
st
 In file acos_test.f90:31

   write(*,*) f(x,acos)
                 1
Error: Type/rank mismatch in argument 'g' at (1)

C:\gfortran_stuff\James\test\acos_test>gfortran -v
Using built-in specs.
Configured with: ../gcc/configure --prefix=/mingw --enable-languages=c,f95
Thread model: win32
gcc version 4.0.0 20050117 (experimental)
</pre>
Discussion: The characteristics of the function are an exact match here.