Only provide function information in compile environments that support

the C99 variable __func__ and never for C++.  Provide a more meaningful
example in the assert(3) manual.

Reviewed by:	asmodai, bde

1 files changed, 9 insertions, 9 deletions

diff --git a/share/man/man3/assert.3 b/share/man/man3/assert.3
index bb23322..ec74ae3 100644
--- a/share/man/man3/assert.3
+++ b/share/man/man3/assert.3
@@ -72,22 +72,22 @@ as a macro
 .Xr cc 1
 option
 .Fl D Ns Dv NDEBUG ) .
-.Sh DIAGNOSTICS
-The following diagnostic message is written to
-.Em stderr
-if
-.Ar expression
-is false:
+.Sh EXAMPLES
+The assertion:
+.Bd -literal -offset indent
+assert(1 == 0);
+.Ed
+.Pp
+generates a diagnostic message similar to the following:
 .Bd -literal -offset indent
-"assertion (%s) failed: function %s(), file %s:%d\en", \e
-		    "expression", __func__, __FILE__, __LINE__);
+assertion (1 == 0) failed: function main(), file assertion.c:100
 .Ed
 .Sh SEE ALSO
 .Xr abort 3
 .Sh STANDARDS
 The
 .Fn assert
-macro confirms to
+macro conforms to
 .St -isoC-99 .
 .Sh HISTORY
 An