Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@xxxxxxxxxxxxxxxxxx>
---
Range-diff against v8:
1: 4479e1572 ! 1: 38109fcc6 regex.3: Desoupify regerror() description
@@ man3/regex.3: .SS Error reporting
+.IR preg .
+.PP
+If
-+.I errbuf_size
-+is
-+.BR 0 ,
-+the size of the required buffer is returned.
-+Otherwise, up to
.I errbuf_size
-are nonzero,
-.I errbuf
-is filled in with the first
-.I "errbuf_size \- 1"
-characters of the error message and a terminating null byte (\[aq]\e0\[aq]).
++isn't 0, up to
++.I errbuf_size
+bytes are copied to
+.IR errbuf ;
+the error string is always null-terminated, and truncated to fit.
.SS Freeing
.BR regfree ()
deinitializes the pattern buffer at
+@@ man3/regex.3: .SH RETURN VALUE
+ returns zero for a successful match or
+ .B REG_NOMATCH
+ for failure.
++.PP
++.BR regerror ()
++returns the size of the buffer required to hold the string.
+ .SH ERRORS
+ The following errors can be returned by
+ .BR regcomp ():
man3/regex.3 | 36 ++++++++++++++++--------------------
1 file changed, 16 insertions(+), 20 deletions(-)
diff --git a/man3/regex.3 b/man3/regex.3
index d91acc19d..efca582d7 100644
--- a/man3/regex.3
+++ b/man3/regex.3
@@ -210,27 +210,20 @@ .SS Error reporting
.BR regexec ()
into error message strings.
.PP
-.BR regerror ()
-is passed the error code,
-.IR errcode ,
-the pattern buffer,
-.IR preg ,
-a pointer to a character string buffer,
-.IR errbuf ,
-and the size of the string buffer,
-.IR errbuf_size .
-It returns the size of the
-.I errbuf
-required to contain the null-terminated error message string.
-If both
-.I errbuf
-and
+If
+.I preg
+isn't a null pointer,
+.I errcode
+must be the latest error returned from an operation on
+.IR preg .
+.PP
+If
.I errbuf_size
-are nonzero,
-.I errbuf
-is filled in with the first
-.I "errbuf_size \- 1"
-characters of the error message and a terminating null byte (\[aq]\e0\[aq]).
+isn't 0, up to
+.I errbuf_size
+bytes are copied to
+.IR errbuf ;
+the error string is always null-terminated, and truncated to fit.
.SS Freeing
.BR regfree ()
deinitializes the pattern buffer at
@@ -247,6 +240,9 @@ .SH RETURN VALUE
returns zero for a successful match or
.B REG_NOMATCH
for failure.
+.PP
+.BR regerror ()
+returns the size of the buffer required to hold the string.
.SH ERRORS
The following errors can be returned by
.BR regcomp ():
--
2.30.2
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