Article: Q65472
Version(s): 6.00   | 6.00
Operating System: MS-DOS | OS/2
Flags: ENDUSER | s_quickhelp s_c s_utils
Last Modified: 24-OCT-1990

The following information is contained in the online help for the
Microsoft C Compiler version 6.00.

This information below can be accessed by using the following steps:

1. Obtain help on the text "cl" using either the F1 key from the
   Programmer's WorkBench, or by using "qh cl" from the DOS or OS/2
   command lines.

2. Select Preprocessor Options, then Predefined Identifiers.
The compiler automatically defines identifiers useful in writing
portable programs. You can use these identifiers to compile code
sections conditionally. These identifiers are always defined unless
otherwise stated.

   Identifier       Target Identified
   ----------       -----------------

   MSDOS            MS-DOS operating system
   M_I86            Member of the I86 processor family
   M_I86mM          Memory model type
                    <m> = T    Tiny
                          S    Small (default)
                          C    Compact model
                          M    Medium model
                          L    Large model
                          H    Huge model
   M_I8086          8088 or 8086 processor; default or with /G0
                       option
   M_I286           80286 processor; defined with /G1 or /G2 option
   _MSC_VER         Identifies the version of Microsoft C
   NO_EXT_KEYS      Disables Microsoft-specific language extensions
                       and extended keywords; defined only with /Za
                       option
   _CHAR_UNSIGNED   Changes default char type to unsigned; defined
                       only with /J option

The _MSC_VER identifier has a value of 600 for the Microsoft C Compiler
version 6.00. This identifier is not defined in Microsoft C versions
5.10 and earlier.