In this blog post, let’s learn about the error message “13029 Found host variable(s) declared as long. The size of this data type is 4 bytes for 32-bit and 8 bytes for 64-bit applications. This can cause unintended behavior if not used properly.” when working with HPE NonStop SQL/MX, the reason for the error and the solution to fix this error message.
Error Message
13029 Found host variable(s) declared as long. The size of this data type is 4 bytes for 32-bit and 8 bytes for 64-bit applications. This can cause unintended behavior if not used properly.
Reason for the Error
32-bit and 64-bit modes have different sizes for long data type. Because of this, there might be some differences in behavior between 32-bit and 64-bit applications.
Solution
Review the use of long data type in the application. You can ignore this warning if you intend to use 8 byte data type in 64-bit mode and a 4 byte data type in 32-bit mode. Consider using int data type if you intend to use 4 byte data type in both 32-bit and 64-bit modes, and using a long data type if you intend to use 8 byte data type in both modes. Also, if you want to maintain a single source code and compile the application for both 32-bit and 64-bit modes, consider using int for 32-bit storage and long for 64-bit storage
