Re: How to compare two strings?

robin wrote: 
Rich Townsend wrote in message ...

jane.sync@xxxxxxxxx wrote:

I think I got it. Does the following code look like something a Fortran
programmer would use to test two strings?

     function evaluateinput(str1) result(string)
     implicit none
     character(12) str1
     character(12) string
     if (LLT(str1,'test')) then
       string = 'less than'
     else if (LGT(str1,'test')) then
       string = 'greater than'
     else
       string = 'equal'
     end if
     return
     end



I think you've found a work-around, not a fix. The problem is the declaration of
str1. If you pass a string of length shoother than 12, (say, 5), then the
characters of str1 from position 6 onwards will contain garbage. It is this
garbage that prevents str1 from being equal to 'test'; but the collating
operators (LLT and LGT)


These are functions, not operators.

Wow, thanks for correcting that gaping hole in my assesment. My mistake totally invalidates the advice I offered the OP.
.

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