Use pointer comparison in test

Author: tiif

tests/pass-dep/shims/libc-misc.rs

@@ -214,8 +214,8 @@ fn test_posix_gettimeofday() {
 }
 
 fn test_localtime_r() {
-    use std::env;
     use std::ffi::CStr;
+    use std::{env, ptr};
 
     // Set timezone to GMT.
     let key = "TZ";
@@ -250,22 +250,8 @@ fn test_localtime_r() {
     assert_eq!(tm.tm_gmtoff, 0);
     unsafe { assert_eq!(CStr::from_ptr(tm.tm_zone).to_str().unwrap(), "+00") };
 
-    let res_tm: libc::tm;
-    unsafe {
-        res_tm = *res;
-    }
-    // The returned value should match the pointer passed in.
-    assert_eq!(res_tm.tm_sec, 56);
-    assert_eq!(res_tm.tm_min, 43);
-    assert_eq!(res_tm.tm_hour, 7);
-    assert_eq!(res_tm.tm_mday, 7);
-    assert_eq!(res_tm.tm_mon, 3);
-    assert_eq!(res_tm.tm_year, 124);
-    assert_eq!(res_tm.tm_wday, 0);
-    assert_eq!(res_tm.tm_yday, 97);
-    assert_eq!(res_tm.tm_isdst, -1);
-    assert_eq!(res_tm.tm_gmtoff, 0);
-    unsafe { assert_eq!(CStr::from_ptr(res_tm.tm_zone).to_str().unwrap(), "+00") };
+    // The returned value is the pointer passed in.
+    assert!(ptr::eq(res, &mut tm));
 
     //Remove timezone setting.
     env::remove_var(key);