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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:
Ed Maste 2008-09-05 15:24:54 +00:00
parent ab5ed97ed0
commit 7c77eeb816
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=182791
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