From: lynnmcguire5@gmail.com   
      
   On 1/14/2025 12:42 PM, Thomas Koenig wrote:   
   > Lynn McGuire  schrieb:   
   >   
   >> I found and fixed the problem with my code along with one of my   
   >> programmers.  I was not properly handling the size_t hidden argument   
   >> length value that GFortran adds to the character string arguments in my   
   >> C++ code.  Things are going better now.   
   >   
   > Good to hear that.   
   >   
   > Another thing that works well for gcc is to link everything with   
   > the -flto option.   
   >   
   > An example:   
   >   
   > $ cat main.f90   
   > program memain   
   >    character *1 c   
   >    call foo(c)   
   >    print *,c   
   > end   
   > $ cat foo.c   
   > void foo_(char *c)   
   > {   
   >    *c = 'A';   
   > }   
   > $ gfortran -flto  main.f90 foo.c   
   > main.f90:3:13: warning: type of 'foo' does not match original declaration   
   [-Wlto-type-mismatch]   
   >      3 |   call foo(c)   
   >        |             ^   
   > foo.c:1:6: note: type mismatch in parameter 2   
   >      1 | void foo_(char *c)   
   >        |      ^   
   > foo.c:1:6: note: type 'void' should match type 'long int'   
   > foo.c:1:6: note: 'foo_' was previously declared here   
      
   I will try it.   
      
   Thanks,   
   Lynn   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)