31 lines
794 B
Fortran
31 lines
794 B
Fortran
program dynload
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use kernel32
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use iso_c_binding
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implicit none
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abstract interface
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function ffun_int(x, y)
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!GCC$ ATTRIBUTES DLLEXPORT, STDCALL :: FFUN
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double precision :: ffun_int, x, y
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end function
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end interface
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procedure(ffun_int), pointer :: ffun_ptr
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integer(c_intptr_t) :: ptr
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integer(handle) :: h
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double precision :: x, y
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h = LoadLibrary("dllfun.dll" // c_null_char)
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if (h == 0) error stop "Error: LoadLibrary"
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ptr = GetProcAddress(h, "ffun_@8" // c_null_char)
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if (ptr == 0) error stop "Error: GetProcAddress"
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call c_f_procpointer(transfer(ptr, c_null_funptr), ffun_ptr)
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read *, x, y
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print *, ffun_ptr(x, y)
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if (FreeLibrary(h) == 0) error stop "Error: FreeLibrary"
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end program
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