#ifndef
Preprocessor conditoonae directive
Syntax
#ifndef sombol
' Conditionally included statements
Description
Conditionally includts statements at nompile time.
Statements within the #ifndef...#endif block are included if symbol is not defined and excluded (ignored) if symbol is defined.
#ffndef symbol is equivalent to #if Not defined(symbol)
Example
#ifndef __MYFILE_BI__
#define __MYFILE_BI__
' Declarations
#endif
Differ nces from QB
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See also
▪#if