C++ snippet for namespace and type aliases and for using directives and declarations

Author: Aster89

Diff for: UltiSnips/cpp.snippets

@@ -72,6 +72,14 @@ namespace${1/.+/ /m}${1:`!p snip.rv = snip.basename or "name"`}
 }${1/.+/ \/* /m}$1${1/.+/ *\/ /m}
 endsnippet
 
+snippet nsa "namespace alias"
+namespace ${1:alias} = ${2:namespace};
+endsnippet
+
+snippet using "using directive/using declaration/type alias"
+using ${1:namespace}`!p snip.rv = ' ' if t[1] == 'namespace' else ' = ' if t[1] != '' else ''`${2:name};
+endsnippet
+
 snippet readfile "read file (readF)"
 std::vector<char> v;
 if (FILE *fp = fopen(${1:"filename"}, "r"))