forked from OSchip/llvm-project
114 lines
2.1 KiB
Fortran
114 lines
2.1 KiB
Fortran
integer :: y
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procedure() :: a
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procedure(real) :: b
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call a ! OK - can be function or subroutine
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!ERROR: Cannot call subroutine 'a' like a function
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c = a()
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!ERROR: Cannot call function 'b' like a subroutine
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call b
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!ERROR: Cannot call function 'y' like a subroutine
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call y
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call x
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!ERROR: Cannot call subroutine 'x' like a function
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z = x()
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end
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subroutine s
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!ERROR: Cannot call function 'f' like a subroutine
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call f
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!ERROR: Cannot call subroutine 's' like a function
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i = s()
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contains
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function f()
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end
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end
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subroutine s2
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! subroutine vs. function is determined by use
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external :: a, b
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call a()
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!ERROR: Cannot call subroutine 'a' like a function
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x = a()
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x = b()
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!ERROR: Cannot call function 'b' like a subroutine
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call b()
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end
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subroutine s3
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! subroutine vs. function is determined by use, even in internal subprograms
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external :: a
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procedure() :: b
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contains
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subroutine s3a()
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x = a()
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call b()
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end
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subroutine s3b()
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!ERROR: Cannot call function 'a' like a subroutine
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call a()
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!ERROR: Cannot call subroutine 'b' like a function
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x = b()
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end
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end
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module m
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! subroutine vs. function is determined at end of specification part
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external :: a
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procedure() :: b
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contains
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subroutine s()
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call a()
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!ERROR: Cannot call subroutine 'b' like a function
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x = b()
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end
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end
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! Call to entity in global scope, even with IMPORT, NONE
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subroutine s4
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block
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import, none
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integer :: i
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!ERROR: Use of 'm' as a procedure conflicts with its declaration
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i = m()
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!ERROR: Use of 'm' as a procedure conflicts with its declaration
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call m()
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end block
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end
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! Call to entity in global scope, even with IMPORT, NONE
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subroutine s5
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block
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import, none
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integer :: i
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i = foo()
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!ERROR: Cannot call function 'foo' like a subroutine
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call foo()
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end block
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end
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subroutine s6
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call a6()
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end
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!ERROR: 'a6' was previously called as a subroutine
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function a6()
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a6 = 0.0
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end
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subroutine s7
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x = a7()
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end
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!ERROR: 'a7' was previously called as a function
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subroutine a7()
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end
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!OK: use of a8 and b8 is consistent
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subroutine s8
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call a8()
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x = b8()
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end
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subroutine a8()
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end
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function b8()
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b8 = 0.0
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end
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