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 MEMORY()
 Determine the amount of available free pool memory
------------------------------------------------------------------------------
 Syntax

     MEMORY(<nExp>) --> nKbytes

 Arguments

     <nExp> is a numeric value that determines the type of value MEMORY()
     returns as follows:

     MEMORY() Argument Values
     ------------------------------------------------------------------------
     Value     Meaning
     ------------------------------------------------------------------------
     0         Estimated total space available for character values
     1         Largest contiguous block available for character values
     2         Area available for RUN commands
     ------------------------------------------------------------------------

 Returns

     MEMORY() returns an integer numeric value representing the amount of
     memory available, in one -kilobyte increments.

 Description

     MEMORY() is an environment function that reports various states of free
     pool memory.  (Free pool is the dynamic region of memory that stores
     character strings and executes RUN commands.)

 Examples

     .  This example uses MEMORY() before a RUN command to determine
        if there is enough memory available to execute the external program:

        #define MEM_CHAR   0
        #define MEM_BLOCK   1
        #define MEM_RUN      2
        //
        IF MEMORY(MEM_RUN) >= 128
           RUN MYPROG
        ELSE
           ? "Not enough memory to RUN"
           BREAK
        ENDIF

 Files   Library is CLIPPER.LIB.