Article ID: 49451
Article Last Modified on 12/1/2003
APPLIES TO
- Microsoft FORTRAN Compiler 4.0
- Microsoft FORTRAN Compiler 4.01
- Microsoft FORTRAN Compiler 4.1
- Microsoft FORTRAN Compiler 5.0
- Microsoft FORTRAN Compiler 5.1
- Microsoft FORTRAN Compiler 4.1
- Microsoft FORTRAN Compiler 5.0
- Microsoft FORTRAN Compiler 5.1
This article was previously published under Q49451
SUMMARY
The /4ccstring compiler option switch permits conditional compilation in a source file. According to page 355 of the Microsoft FORTRAN "Reference" manual for versions 5.0 and 5.1,
The /4cc option permits conditional compilation of a source file. The string is a set of alphabetic characters controlling which lines in the source file are to be compiled.
A similar statement appears on page 93 of the Microsoft FORTRAN "User's Guide" for versions 4.0 and 4.1.
MORE INFORMATION
The following code example demonstrates conditional compilation.
Sample Code
C Compile options needed: See below
PROGRAM TEST
L INTEGER*4 NUM
S INTEGER*2 NUM
R REAL*4 NUMBER
END
If you compile this code with the /4ccL option switch, the compiler reserves 4 bytes for NUM. If you specify the /4ccS option switch, the compiler reserves 2 bytes for NUM. If you omit the /4cc option switch, the L, S, and R lines are considered comment lines. If you specify the /4ccLS option switch, a multiply-defined symbol error occurs because NUM is defined twice. Compiling with the /4ccLR or /4ccSR option switch defines NUM with the desired size and defines NUMBER as a REAL*4.
Additional query words: 4.00 4.01 4.10 5.00 5.10
Keywords: KB49451
