From 604781308152b192d4276cb9958458e0dc705826 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sat, 27 Apr 2019 18:03:43 +0300
Subject: [PATCH] Add endian_store_test

---
 test/Jamfile.v2            |   3 +
 test/endian_store_test.cpp | 401 +++++++++++++++++++++++++++++++++++++
 2 files changed, 404 insertions(+)
 create mode 100644 test/endian_store_test.cpp

diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 8222140..9e015b7 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -60,5 +60,8 @@ run endian_reverse_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : endian_re
 run endian_load_test.cpp ;
 run endian_load_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : endian_load_test_ni ;
 
+run endian_store_test.cpp ;
+run endian_store_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : endian_store_test_ni ;
+
 run endian_ld_st_roundtrip_test.cpp ;
 run endian_ld_st_roundtrip_test.cpp : : : <define>BOOST_ENDIAN_NO_INTRINSICS : endian_ld_st_roundtrip_test_ni ;
diff --git a/test/endian_store_test.cpp b/test/endian_store_test.cpp
new file mode 100644
index 0000000..470a187
--- /dev/null
+++ b/test/endian_store_test.cpp
@@ -0,0 +1,401 @@
+// Copyright 2019 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0.
+// http://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/endian/detail/endian_store.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/config.hpp>
+#include <boost/cstdint.hpp>
+#include <cstddef>
+#include <ostream>
+#include <iomanip>
+
+class byte_span
+{
+private:
+
+    unsigned char const * p_;
+    std::size_t n_;
+
+public:
+
+    byte_span( unsigned char const * p, std::size_t n ): p_( p ), n_( n )
+    {
+    }
+
+    template<std::size_t N> explicit byte_span( unsigned char const (&a)[ N ] ): p_( a ), n_( N )
+    {
+    }
+
+    bool operator==( byte_span const& r ) const
+    {
+        if( n_ != r.n_ ) return false;
+
+        for( std::size_t i = 0; i < n_; ++i )
+        {
+            if( p_[ i ] != r.p_[ i ] ) return false;
+        }
+
+        return true;
+    }
+
+    friend std::ostream& operator<<( std::ostream& os, byte_span s )
+    {
+        if( s.n_ == 0 ) return os;
+
+        os << std::hex << std::setfill( '0' ) << std::uppercase;
+            
+        os << std::setw( 2 ) << +s.p_[ 0 ];
+
+        for( std::size_t i = 1; i < s.n_; ++i )
+        {
+            os << ':' << std::setw( 2 ) << +s.p_[ i ];
+        }
+
+        os << std::dec << std::setfill( ' ' ) << std::nouppercase;;
+
+        return os;
+    }
+};
+
+int main()
+{
+    // 1
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int8_t, 1, boost::endian::order::little>( 0x01, v );
+
+        unsigned char w[] = { 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint8_t, 1, boost::endian::order::little>( 0x01, v );
+
+        unsigned char w[] = { 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int8_t, 1, boost::endian::order::big>( 0x01, v );
+
+        unsigned char w[] = { 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint8_t, 1, boost::endian::order::big>( 0x01, v );
+
+        unsigned char w[] = { 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 2
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int16_t, 2, boost::endian::order::little>( 0x0102, v );
+
+        unsigned char w[] = { 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint16_t, 2, boost::endian::order::little>( 0x0102, v );
+
+        unsigned char w[] = { 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int16_t, 2, boost::endian::order::big>( 0x0102, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint16_t, 2, boost::endian::order::big>( 0x0102, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 3
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int32_t, 3, boost::endian::order::little>( 0x010203, v );
+
+        unsigned char w[] = { 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint32_t, 3, boost::endian::order::little>( 0x010203, v );
+
+        unsigned char w[] = { 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int32_t, 3, boost::endian::order::big>( 0x010203, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint32_t, 3, boost::endian::order::big>( 0x010203, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 4
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int32_t, 4, boost::endian::order::little>( 0x01020304, v );
+
+        unsigned char w[] = { 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint32_t, 4, boost::endian::order::little>( 0x01020304, v );
+
+        unsigned char w[] = { 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int32_t, 4, boost::endian::order::big>( 0x01020304, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint32_t, 4, boost::endian::order::big>( 0x01020304, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 5
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 5, boost::endian::order::little>( 0x0102030405, v );
+
+        unsigned char w[] = { 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 5, boost::endian::order::little>( 0x0102030405, v );
+
+        unsigned char w[] = { 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 5, boost::endian::order::big>( 0x0102030405, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 5, boost::endian::order::big>( 0x0102030405, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 6
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 6, boost::endian::order::little>( 0x010203040506, v );
+
+        unsigned char w[] = { 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 6, boost::endian::order::little>( 0x010203040506, v );
+
+        unsigned char w[] = { 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 6, boost::endian::order::big>( 0x010203040506, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 6, boost::endian::order::big>( 0x010203040506, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 7
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 7, boost::endian::order::little>( 0x01020304050607, v );
+
+        unsigned char w[] = { 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 7, boost::endian::order::little>( 0x01020304050607, v );
+
+        unsigned char w[] = { 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 7, boost::endian::order::big>( 0x01020304050607, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 7, boost::endian::order::big>( 0x01020304050607, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    // 8
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 8, boost::endian::order::little>( 0x0102030405060708, v );
+
+        unsigned char w[] = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 8, boost::endian::order::little>( 0x0102030405060708, v );
+
+        unsigned char w[] = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::int64_t, 8, boost::endian::order::big>( 0x0102030405060708, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    {
+        unsigned char v[] = { 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA };
+
+        boost::endian::endian_store<boost::uint64_t, 8, boost::endian::order::big>( 0x0102030405060708, v );
+
+        unsigned char w[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0xAA };
+
+        BOOST_TEST_EQ( byte_span( v ), byte_span( w ) );
+    }
+
+    return boost::report_errors();
+}