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authorThiago Marcos P. Santos <tmpsantos@gmail.com>2018-03-05 22:08:59 +0200
committerThiago Marcos P. Santos <tmpsantos@gmail.com>2018-03-06 10:08:09 +0200
commitb2286c6c8f9076de4143061a778fc676cc15eb84 (patch)
tree66afddb456cf35e99c0a4c4c8b32433f9811da76 /deps/tao_tuple/28626e99/include/tao/seq/sum.hpp
parente8d6303d783a124aa5ba2fcf797df80a88ed546f (diff)
downloadqtlocation-mapboxgl-b2286c6c8f9076de4143061a778fc676cc15eb84.tar.gz
Bump Mapbox GL Native
mapbox-gl-native @ ae0e583590ce8d7a564c8d9cb7c0fcee5515125e Follow-up, added missing headers.
Diffstat (limited to 'deps/tao_tuple/28626e99/include/tao/seq/sum.hpp')
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1 files changed, 72 insertions, 0 deletions
diff --git a/deps/tao_tuple/28626e99/include/tao/seq/sum.hpp b/deps/tao_tuple/28626e99/include/tao/seq/sum.hpp
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+// The Art of C++ / Sequences
+// Copyright (c) 2015-2016 Daniel Frey
+
+#ifndef TAOCPP_SEQUENCES_INCLUDE_SUM_HPP
+#define TAOCPP_SEQUENCES_INCLUDE_SUM_HPP
+
+#include <type_traits>
+#include <utility>
+
+#include "integer_sequence.hpp"
+#include "config.hpp"
+
+#ifndef TAOCPP_FOLD_EXPRESSIONS
+#include <cstddef>
+#include "make_integer_sequence.hpp"
+#endif
+
+namespace tao
+{
+ namespace seq
+ {
+
+#ifdef TAOCPP_FOLD_EXPRESSIONS
+
+ template< typename T, T... Ns >
+ struct sum
+ : std::integral_constant< T, ( Ns + ... + T( 0 ) ) >
+ {};
+
+#else
+
+ namespace impl
+ {
+ template< std::size_t, std::size_t N >
+ struct chars
+ {
+ char dummy[ N + 1 ];
+ };
+
+ template< typename, std::size_t... >
+ struct collector;
+
+ template< std::size_t... Is, std::size_t... Ns >
+ struct collector< index_sequence< Is... >, Ns... >
+ : chars< Is, Ns >...
+ {};
+
+ template< std::size_t N, typename T, T... Ns >
+ struct sum
+ {
+ using type = std::integral_constant<
+ T,
+ T( sizeof( collector< make_index_sequence< N >, ( ( Ns > 0 ) ? Ns : 0 )... > ) - N ) -
+ T( sizeof( collector< make_index_sequence< N >, ( ( Ns < 0 ) ? -Ns : 0 )... > ) - N ) >;
+ };
+ }
+
+ template< typename T, T... Ns >
+ struct sum
+ : impl::sum< sizeof...( Ns ) + 1, T, Ns..., 0 >::type
+ {};
+
+#endif
+
+ template< typename T, T... Ns >
+ struct sum< integer_sequence< T, Ns... > >
+ : sum< T, Ns... >
+ {};
+ }
+}
+
+#endif // TAOCPP_SEQUENCES_INCLUDE_SUM_HPP