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X-Hacker.org- Force 4.0 Reference - bytetoptr() poke a byte value at memory address http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]
 bytetoptr()         Poke a byte value at memory address
------------------------------------------------------------------------------
 Declaration
   memory.hdr

 Syntax
   proc bytetoptr extern
   param value byte     bValue, ;
         value _POINTER pMem

 Arguments
   bValue is the value to place in memory.
   pMem is the target address.

 Return
   None.

 Description
   This procedure copies a byte value into the specified memory location.

   The procedure is included for compatibility with earlier Force versions.
   Use the ptr() data type in conjunction with the & and * operators for
   directly writing to explicit memory addresses.

 Example
   #define EXAMPLE_MEMORY
   #include example.hdr

   proc Test_bytetoptr
   vardef
      ptr( byte ) pMem        // pointer
   enddef
   pMem := malloc( 1000 )     // allocate working space
   ? *pMem                    // prints accidental value
   bytetoptr( 100, pMem )     // write a byte to memory via function call
   ? *pMem                    // prints 100
   *pMem := 111               // write a byte to memory via pointer
   ? *pMem                    // prints 111
   free( pMem )               // free allocation
   endproc

   proc main
   Test_bytetoptr()
   endproc

See Also: bytetosegoff() chartoptr() chartosegoff() datetoptr() dbltoptr() dbltosegoff() uinttoptr() uinttosegoff() ulongtoptr() ulongtosegoff()

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