More clarification of MS-specific

Colin Robertson · Colin Robertson · commit edc99fc0b5cc · 2020-01-08T02:25:42.000-08:00
diff --git a/docs/c-runtime-library/reference/ismbblead-ismbblead-l.md b/docs/c-runtime-library/reference/ismbblead-ismbblead-l.md
@@ -46,6 +46,8 @@ Multibyte characters consist of a lead byte followed by a trailing byte. Lead by
 
 When the locale is UTF-8, **_ismbblead** and **_ismbblead_l** always return 0 (false), whether *c* is a lead byte or not.
 
+**_ismbblead** and **_ismbblead_l** are Microsoft-specific, not part of the Standard C library. We don't recommend you use them where you want portable code. For Standard C compatibility, use **mbrlen** instead.
+
 ### Generic-text routine mappings
 
 |Tchar.h routine|_UNICODE and _MBCS not defined|_MBCS defined|_UNICODE defined|
@@ -66,4 +68,5 @@ For more compatibility information, see [Compatibility](../../c-runtime-library/
 ## See also
 
 [Byte classification](../../c-runtime-library/byte-classification.md)\
-[_ismbb routines](../../c-runtime-library/ismbb-routines.md)
+[_ismbb routines](../../c-runtime-library/ismbb-routines.md)\
+[mbrlen](mbrlen.md)
diff --git a/docs/c-runtime-library/reference/mbclen-mblen-mblen-l.md b/docs/c-runtime-library/reference/mbclen-mblen-mblen-l.md
@@ -66,7 +66,7 @@ The **_mbclen** function returns the length, in bytes, of the multibyte characte
 
 The output value is affected by the **LC_CTYPE** category setting of the locale. The versions of these functions without the **_l** suffix use the current locale for this locale-dependent behavior. The **_l** suffixed versions behave the same, but they use the locale parameter passed in instead. For more information, see [setlocale](setlocale-wsetlocale.md) and [Locale](../../c-runtime-library/locale.md).
 
-**_mbclen**, **_mblen_l**, and **_mbclen_l** are Microsoft-specific, not part of the Standard C library. We don't recommend you use them where you want portable code. For Standard C compatibility, use **mblen** instead.
+**_mbclen**, **_mblen_l**, and **_mbclen_l** are Microsoft-specific, not part of the Standard C library. We don't recommend you use them where you want portable code. For Standard C compatibility, use **mblen** or **mbrlen** instead.
 
 ### Generic-Text Routine Mappings
 
@@ -129,4 +129,5 @@ Length in bytes of NULL multibyte character 0: 0
 [Locale](../../c-runtime-library/locale.md)\
 [Interpretation of Multibyte-Character Sequences](../../c-runtime-library/interpretation-of-multibyte-character-sequences.md)\
 [_mbccpy, _mbccpy_l](mbccpy-mbccpy-l.md)\
+[mbrlen](mbrlen.md)\
 [strlen, wcslen, _mbslen, _mbslen_l, _mbstrlen, _mbstrlen_l](strlen-wcslen-mbslen-mbslen-l-mbstrlen-mbstrlen-l.md)
