build files

Author: uzairnawaz

libc/config/linux/x86_64/entrypoints.txt

@@ -1251,6 +1251,7 @@ if(LLVM_LIBC_FULL_BUILD)
     libc.src.wchar.mbrtowc
     libc.src.wchar.mbtowc
     libc.src.wchar.wcrtomb
+    libc.src.wchar.wcsrtombs
   )
 endif()
 

libc/include/wchar.yaml

@@ -175,6 +175,15 @@ functions:
       - type: char *__restrict
       - type: wchar_t
       - type: mbstate_t *__restrict
+  - name: wcsrtombs
+    standards:
+      - stdc
+    return_type: size_t
+    arguments:
+      - type: char *__restrict
+      - type: wchar_t **__restrict
+      - type: size_t
+      - type: mbstate_t *__restrict
   - name: wcscpy
     standards:
       - stdc

libc/test/src/wchar/CMakeLists.txt

@@ -74,6 +74,20 @@ add_libc_test(
     libc.src.__support.libc_errno
 )
 
+add_libc_test(
+  wcsrtombs_test
+  SUITE
+    libc_wchar_unittests
+  SRCS
+    wcsrtombs_test.cpp
+  DEPENDS
+    libc.src.wchar.wcrtomb
+    libc.src.string.memset
+    libc.hdr.types.wchar_t
+    libc.hdr.types.mbstate_t
+    libc.src.__support.libc_errno
+)
+
 add_libc_test(
   wmemset_test 
   SUITE