2.6 The COMMON-EXTENSIONS module
debug-assert
Statement macro
Summary
Signals an error if the expression passed to it evaluates to false -- but only when the code is compiled in interactive development mode.
Macro call (1)
debug-assert expression format-string [ format-arg ]* => false
Macro call (2)
debug-assert expression => false
Arguments
- expression
- A Dylan expressionbnf.
- format-string
- A Dylan expressionbnf.
- format-arg
- A Dylan expressionbnf.
Values
- false
-
#f.
Library
common-extensions
Module
common-extensions
Description
Signals an error if expression evaluates to false -- but only when the code is compiled in debugging mode.
An assertion or "assert" is a simple and popular development tool for testing conditions in program code.
This macro is identical to assert, except that the assert is defined to take place only while debugging.
The Functional Developer compiler removes debug-assertions when it compiles code in "production" mode as opposed to "debugging" mode.
The format-string is a format string as defined on page 112 of the DRM.