Merge pull request #1629 from lzutao/wmemchr

add wmemchr to all platforms support memchr (except wasi)

Author: JohnTitor

src/cloudabi/mod.rs

@@ -259,6 +259,7 @@ extern "C" {
     ) -> ::size_t;
 
     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t;
     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
     pub fn memcpy(
         dest: *mut c_void,

src/fuchsia/mod.rs

@@ -3401,6 +3401,7 @@ extern "C" {
     ) -> ::size_t;
 
     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t;
     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
     pub fn memcpy(
         dest: *mut c_void,

src/unix/mod.rs

@@ -546,6 +546,7 @@ extern "C" {
     ) -> ::size_t;
 
     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t;
     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
     pub fn memcpy(
         dest: *mut c_void,

src/vxworks/mod.rs

@@ -1173,6 +1173,7 @@ extern "C" {
     ) -> ::size_t;
 
     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t;
     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
     pub fn memcpy(
         dest: *mut c_void,

src/windows/mod.rs

@@ -378,6 +378,7 @@ extern "C" {
     ) -> ::size_t;
 
     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t;
     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
     pub fn memcpy(
         dest: *mut c_void,