C preprocessor
I saw in a document ,which says that (it was on C preprocessor) the OS will set a macro names SYSTEM which will be equal to the OS currently running. For example if it is a MS-DOS system , SYSTEM will qual to MSDOS, and the example given was,
#if SYSTEM==MSDOS
.
.
.
How true is the fact that the OS sets a macro named SYSTEM. Pls explain.
> How true is the fact that the OS sets a macro named SYSTEM.
Not true at all generally speaking. Any such macro name would be set by the compiler, and as such would be compiler specific.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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