Final answer:
In programming, an eval block refers to a code construct where expressions are evaluated at runtime, and items marked with an asterisk (*) could indicate special cases or errors in some debugging or documentation contexts.
Step-by-step explanation:
The question seems to relate to programming and more specifically to the context of error handling and reporting within certain code blocks. In many programming languages, an eval block is a construct that evaluates a string as code.
When it comes to items marked with an asterisk (*), this could be referring to a practice in certain coding documentation or debugging reports where the asterisk indicates a particular error or a special case. Without more context, it is difficult to provide a definitive answer as to exactly what an eval block refers to without knowing the specific programming language or environment.
However, generally, an eval block refers to a section of code where expressions are evaluated at runtime, and errors or special items, potentially marked with an asterisk, are reported in debugging or logging.