Article ID: 74219
Article Last Modified on 12/1/2003
APPLIES TO
- Microsoft FORTRAN Compiler 5.0
- Microsoft FORTRAN Compiler 5.1
- Microsoft FORTRAN Compiler 5.0
- Microsoft FORTRAN Compiler 5.1
This article was previously published under Q74219
SYMPTOMS
Using Microsoft FORTRAN versions 5.0 or 5.1 to compile a program that uses the LEN_TRIM intrinsic function on a character string that is defined as a PARAMETER may result in the following error:
STATUS
Microsoft has confirmed this to be a problem in FORTRAN versions 5.0 and 5.1 for MS-DOS and OS/2. This problem was corrected in FORTRAN PowerStation.
MORE INFORMATION
The following program will generate the internal compiler error:
character*8 a
parameter (a='abcdef ')
print*,len_trim(a)
end
Since the length of a PARAMETER character is fixed, and therefore, the last nonblank character is known when the program is compiled, use of the LEN_TRIM function on PARAMETER character strings can be avoided by using this known constant value, or by using another PARAMETER to store this value.
It is also possible to pass the PARAMETER as an argument to a function and to call the LEN_TRIM intrinsic function from within this user defined function without generating any errors. The following program illustrates this solution:
character*8 a
parameter (a='abcdef ')
integer*4 trim
print*, trim(a)
end
integer*4 function trim(a) ! User-defined substitute
! for LEN_TRIM
character*(*) a
trim = len_trim(a)
end
Additional query words: 5.00 5.10
Keywords: kbfix KB74219
