from
Jargon File (4.4.4, 14 Aug 2003)
boxed comments
n.
Comments (explanatory notes attached to program instructions) that
occupy several lines by themselves; so called because in assembler and
C code they are often surrounded by a box in a style something like
this:
/*************************************************
*
* This is a boxed comment in C style
*
*************************************************/
Common variants of this style omit the asterisks in column 2 or add a
matching row of asterisks closing the right side of the box. The
sparest variant omits all but the comment delimiters themselves; the
`box' is implied. Oppose {winged comments}.