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Add a note that CTASSERT() should not be used in header files.

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This commit is contained in:
emaste 2008-09-05 15:24:54 +00:00
parent e690e2f8cd
commit 9badf4bdbe
1 changed files with 9 additions and 1 deletions
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10
share/man/man9/CTASSERT.9
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@ -26,7 +26,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd May 15, 2003
.Dd September 5, 2008
.Os
.Dt CTASSERT 9
.Sh NAME
@ -48,6 +48,14 @@ The
macro is useful for asserting the size or alignment of important
data structures and variables during compilation, which would
otherwise cause the code to fail at run time.
.Sh IMPLEMENTATION NOTES
The
.Fn CTASSERT
macro should not be used in a header file.
It is implemented using a dummy typedef, with a name (based on line number)
that may conflict with a
.Fn CTASSERT
in a source file including that header.
.Sh EXAMPLES
Assert that the size of the
.Vt uuid