[libcxx] r337970 - Fix failing test under C++14

[Eric Fiselier via cfe-commits]

Author: ericwf
Date: Wed Jul 25 14:53:43 2018
New Revision: 337970

URL: http://llvm.org/viewvc/llvm-project?rev=337970&view=rev
Log:
Fix failing test under C++14

Modified:
    libcxx/trunk/src/experimental/filesystem/filesystem_common.h

Modified: libcxx/trunk/src/experimental/filesystem/filesystem_common.h
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/src/experimental/filesystem/filesystem_common.h?rev=337970&r1=337969&r2=337970&view=diff
==============================================================================
--- libcxx/trunk/src/experimental/filesystem/filesystem_common.h (original)
+++ libcxx/trunk/src/experimental/filesystem/filesystem_common.h Wed Jul 25 14:53:43 2018
@@ -362,8 +362,8 @@ public:
     // The tv_nsec and tv_usec fields must not be negative so adjust accordingly
     if (subsec_dur.count() < 0) {
       if (sec_dur.count() > min_seconds) {
-        sec_dur -= fs_seconds(1);
-        subsec_dur += fs_seconds(1);
+        sec_dur = sec_dur - fs_seconds(1);
+        subsec_dur = subsec_dur + fs_seconds(1);
       } else {
         subsec_dur = fs_nanoseconds::zero();
       }