🚀 go-pugleaf

GIAMPAL@auvm.auvm.edu writes:
>In article <1990Nov19.130657.19380@sisd.kodak.com>, jeh@sisd.kodak.com (Ed
>Hanway) says:
>>#define SAY(s)  Write(backstdout, s, strlen(s))

>#define MSG(s) { char *s; Write(Output(), s, strlen(s)); }
>
>This way you only get one copy of the string constant, and you get a nice
>function.

I guess you really mean

#define MSG(s)	{ char *tmp = s; Write(whatever, tmp, strlen(tmp)); }

which is fine, but my version was posted as an example of when a builtin
version of strlen() came in handy.  In Lattice (now SAS) C, strlen("constant")
is evaluated at compile time, so, using my version, SAY("foo") would
compile as Write(backstdout, "foo", 3).  This not only eliminates the
extra copy of the string constant, it eliminates the strlen() operation
altogether.

--
Ed Hanway --- uunet!sisd!jeh
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