PRB: Memory Not Displayed Correctly for Numeric Data

ID: Q126271

The information in this article applies to:

• Microsoft FoxPro for Windows, version 2.6a

SYMPTOMS

When you use the DISPLAY MEMORY command to find out how much memory is being used for memory variables, the value displayed for numeric variables is incorrect.

CAUSE

The DISPLAY MEMORY command is only intended to display the memory taken by string data, which varies in length. Other data types, such as numerical, are stored within the memory variable itself which is a fixed-size structure.

STATUS

This behavior is by design.

MORE INFORMATION

Steps to Reproduce Behavior

1. Type the following commands in the Command window:

   SET PDSETUP TO
   RELEASE _PDPARMS
   CLEAR MEMORY

   MVAR1=12345
   MVAR2=4567
   DISPLAY MEMORY

   The following information regarding MVAR1 and MVAR2 is displayed:

   MVAR1   PUB   N   12345......
   MVAR2   PUB   N   45678.......
   2 variables defined,     0 bytes used

   CLEAR MEMORY
   MVAR3="ABCD"
   MVAR4="XYZ"
   DISPLAY MEMORY

   The following information regarding MVAR3 and MVAR4 is displayed:

   MVAR3  PUB   C   "ABCD"
   MVAR4  PUB   C   "XYZ"
   2 variables defined,     21 bytes used