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-rw-r--r--manual/string.texi11
1 files changed, 7 insertions, 4 deletions
diff --git a/manual/string.texi b/manual/string.texi
index 9ae09b9724..fbe74ea46b 100644
--- a/manual/string.texi
+++ b/manual/string.texi
@@ -266,7 +266,7 @@ memcpy (new, old, arraysize * sizeof (struct foo));
The @code{mempcpy} function is nearly identical to the @code{memcpy}
function. It copies @var{size} bytes from the object beginning at
@code{from} into the object pointed to by @var{to}. But instead of
-returning the value of @code{to} it returns a pointer to the byte
+returning the value of @var{to} it returns a pointer to the byte
following the last written byte in the object beginning at @var{to}.
I.e., the value is @code{((void *) ((char *) @var{to} + @var{size}))}.
@@ -424,7 +424,7 @@ Its behaviour is undefined if the strings overlap.
@comment string.h
@comment GNU
@deftypefn {Macro} {char *} strdupa (const char *@var{s})
-This function is similar to @code{strdup} but allocates the new string
+This macro is similar to @code{strdup} but allocates the new string
using @code{alloca} instead of @code{malloc} (@pxref{Variable Size
Automatic}). This means of course the returned string has the same
limitations as any block of memory allocated using @code{alloca}.
@@ -1041,7 +1041,7 @@ sort_strings_fast (char **array, int nstrings)
@end smallexample
@strong{Compatibility Note:} The string collation functions are a new
-feature of @w{ISO C89}. Older C dialects have no equivalent feature.
+feature of @w{ISO C90}. Older C dialects have no equivalent feature.
@node Search Functions
@section Search Functions
@@ -1284,6 +1284,9 @@ modified it, and it would not have the expected value.
The string that you are operating on might even be a constant. Then
when @code{strtok} tries to modify it, your program will get a fatal
signal for writing in read-only memory. @xref{Program Error Signals}.
+Even if the operation of @code{strtok} would not require a modification
+of the string (e.g., if there is exactly one token) the string can (and
+in the GNU libc case will) be modified.
This is a special case of a general principle: if a part of a program
does not have as its purpose the modification of a certain data
@@ -1332,7 +1335,7 @@ pointer to a string pointer. Calling @code{strtok_r} with a null
pointer for @var{newstring} and leaving @var{save_ptr} between the calls
unchanged does the job without hindering reentrancy.
-This function is defined in POSIX-1 and can be found on many systems
+This function is defined in POSIX.1 and can be found on many systems
which support multi-threading.
@end deftypefun