scc

commit 8475094bf2b26b40e5884dbe790222dc904fd217
parent 0b0912907edf1f93e405cb9ba00f8b6a146d09b5
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun,  6 Nov 2022 14:35:49 +0100

libc/wchar: Add mbrlen()

Diffstat:
M
include/wchar.h
 | 
3
+++
M
src/libc/objs/common-objs.mk
 | 
1
+
M
src/libc/wchar/Makefile
 | 
1
+
A
src/libc/wchar/mbrlen.c
 | 
9
+++++++++

4 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/include/wchar.h b/include/wchar.h
@@ -93,4 +93,7 @@ extern size_t wcrtomb(char *restrict, wchar_t, mbstate_t *restrict);
 extern size_t mbsrtowcs(wchar_t *restrict, const char **restrict, size_t, mbstate_t *restrict);
 extern size_t wcsrtombs(char *restrict, const wchar_t **restrict, size_t, mbstate_t *restrict);
 extern int wcwidth(wchar_t);
+
+#define mbrlen(s, n, ps) mbrtowc(NULL, s, n, ps)
+
 #endif
diff --git a/src/libc/objs/common-objs.mk b/src/libc/objs/common-objs.mk
@@ -116,5 +116,6 @@ COMMON_OBJS =\
 	time/mktime.$O\
 	time/strftime.$O\
 	time/tz.$O\
+	wchar/mbrlen.$O\
 	wchar/mbrtowc.$O\
 	wchar/wcwidth.$O\
diff --git a/src/libc/wchar/Makefile b/src/libc/wchar/Makefile
@@ -4,6 +4,7 @@ include $(PROJECTDIR)/scripts/rules.mk
 include ../rules.mk
 
 OBJS =\
+	mbrlen.$O\
 	mbrtowc.$O\
 	wcwidth.$O\
 
diff --git a/src/libc/wchar/mbrlen.c b/src/libc/wchar/mbrlen.c
@@ -0,0 +1,9 @@
+#include <wchar.h>
+
+#undef mbrlen
+
+size_t
+mbrlen(const char *restrict s, size_t n, mbstate_t *restrict ps)
+{
+	return mbrtowc(NULL, s, n, ps);
+}