posix.cfg: Added support for wcsnrtombs().

cfg/posix.cfg

@@ -14,6 +14,36 @@
       <not-bool/>
     </arg>
   </function>
+  <!-- https://man7.org/linux/man-pages/man3/wcsnrtombs.3.html -->
+  <!-- size_t wcsnrtombs(char *restrict dest, const wchar_t **restrict src, size_t nwc, size_t len, mbstate_t *restrict ps); -->
+  <function name="wcsnrtombs">
+    <use-retval/>
+    <returnValue type="size_t"/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1" direction="out">
+      <not-bool/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-uninit/>
+      <not-bool/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="4" direction="in">
+      <not-uninit/>
+      <not-bool/>
+      <valid>0:</valid>
+    </arg>
+    <arg nr="5" direction="in">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+  </function>
   <!-- https://man7.org/linux/man-pages/man3/aio_read.3.html -->
   <!-- int aio_read(struct aiocb *aiocbp); -->
   <!-- https://man7.org/linux/man-pages/man3/aio_write.3.html -->

test/cfg/posix.c

@@ -31,6 +31,17 @@
 #include <wchar.h>
 #include <string.h>
 
+size_t nullPointer_wcsnrtombs(char *restrict dest, const wchar_t **restrict src, size_t nwc, size_t len, mbstate_t *restrict ps)
+{
+    // It is allowed to set the first arg to NULL
+    (void)wcsnrtombs(NULL,src,nwc,len,ps);
+    // cppcheck-suppress nullPointer
+    (void)wcsnrtombs(dest,NULL,nwc,len,ps);
+    // cppcheck-suppress nullPointer
+    (void)wcsnrtombs(dest,src,nwc,len,NULL);
+    return wcsnrtombs(dest,src,nwc,len,ps);
+}
+
 int nullPointer_wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n)
 {
     // cppcheck-suppress nullPointer