The post is not about what you're sending, it is about making sure what you're receiving is what you're getting. The motivation begins with: "Many of our progra

The post is not about what you're sending, it is about making sure what you're receiving is what you're getting. The motivation begins with: "Many of our programs accept input from the user. Often we need to validate this input before continuing processing and, in the case of errors, inform the user of any problems."