Using qsort and the nus option together

[s_m_rispens]

I was using a combination of C and Fortran routines, so I use the compiler option -nus. Now when I combined this with theroutine qsort, I got the error:

forrtl: severe (174): SIGSEGV, segmentation fault occurred
This can be solved by calling qsort_(...,...,...,...). I.e. adding the underscore yourself.

I guess the compiler has two different variants of qsort available, and with the -nus option it takes the one for C, and without it it takes the one for Fortran?

Sietse

[Steven_L_Intel1]

I think that without the underscore, you are getting one from the C library which expects C calling conventions. That's the risk you take when you tell the compiler to change the default naming conventions.