QOffsetStringArray: fix compilation error with ICC18

error: expression must have a constant value
  static constexpr const auto messages = qOffsetStringArray(

Change-Id: I80a6bf5b83f99a8325511ac8a14e0c9819e3d2b7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 6 insertions, 9 deletions

diff --git a/src/corelib/tools/qoffsetstringarray_p.h b/src/corelib/tools/qoffsetstringarray_p.h
index 1dc429a9bd..076316396b 100644
--- a/src/corelib/tools/qoffsetstringarray_p.h
+++ b/src/corelib/tools/qoffsetstringarray_p.h
@@ -84,10 +84,7 @@ struct StaticString
 {
     const char data[N];
 
-    static constexpr int size() noexcept
-    {
-        return N;
-    }
+    constexpr StaticString(const StaticString<N> &other) noexcept = default;
 };
 
 
@@ -111,11 +108,11 @@ QT_WARNING_PUSH
 QT_WARNING_DISABLE_MSVC(4100) // The formal parameter is not referenced in the body of the function.
                               // The unreferenced parameter is ignored.
                               // It happens when 'rs' is StaticString<0>
-    template<int N1, typename T2>
-    static constexpr StaticString<N1 + T2::size()> concatenate(
-        const char (&ls)[N1], const T2 &rs) noexcept
+    template<int N1, int N2>
+    static constexpr StaticString<N1 + N2> concatenate(
+        const char (&ls)[N1], const StaticString<N2> &rs) noexcept
     {
-        return {ls[I1]..., rs.data[I2]...};
+        return StaticString<N1 + N2>{ls[I1]..., rs.data[I2]...};
     }
 QT_WARNING_POP
 };
@@ -144,7 +141,7 @@ public:
     template<int ... Ox>
     constexpr QOffsetStringArray(const QtPrivate::StaticString<SizeString> &str,
                                  QtPrivate::IndexesList<SizeString, Ox...>) noexcept
-        : m_string{str},
+        : m_string(str),
           m_offsets{Ox...}
     { }