Microsoft KB Archive/108346
PSS ID Number: 108346
Article Last Modified on 3/24/2000
The information in this article applies to:
- Microsoft Fortran Powerstation 32 for Windows NT 1.0
This article was previously published under Q108346
An attempt to execute a program that is compiled using the -4Yb, -Ox, and -G5 options and that contains a character substring expression out of range may cause the application to hang.
Compiler options -4Yb and -G5, along with the optimization (option -Ox) cause the compiler to generate incorrect code.
This problem does not occur with a different combination of options. Avoid the -Ox optimization option, the -4Yb extended-error-handling option, or use the -G4 processor option instead of -G5.
Microsoft has confirmed this to be a problem in FORTRAN PowerStation 32 for Windows NT, version 1.0. This problem was fixed in FORTRAN PowerStation, version 4.0.
The example program below demonstrates the problem:
C Compile options needed: -4Yb, -Ox and -G5 character m*10 /'1234567890'/ l = 3 write(*,*) l ! putting this inside the loop avoids hang do while (m(l:l) .ne. 'Q') l = l + 1 end do write(*,*) 'L = ', l write(*,*) 'M = ', m end
Additional query words: 1.00 lock halt
Keywords: kbbug KB108346
Technology: kbAudDeveloper kbFORTRANPower32100NT kbFortranSearch kbZNotKeyword2