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      1 /*
      2  *  Copyright 2010 The WebRTC Project Authors. All rights reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #if defined(WEBRTC_LINUX) && !defined(WEBRTC_ANDROID)
     12 #include <math.h>
     13 #endif
     14 
     15 #include "webrtc/base/gunit.h"
     16 #include "webrtc/base/latebindingsymboltable.h"
     17 
     18 namespace rtc {
     19 
     20 #if defined(WEBRTC_LINUX) && !defined(WEBRTC_ANDROID)
     21 
     22 #define LIBM_SYMBOLS_CLASS_NAME LibmTestSymbolTable
     23 #define LIBM_SYMBOLS_LIST \
     24   X(acos) \
     25   X(sin) \
     26   X(tan)
     27 
     28 #define LATE_BINDING_SYMBOL_TABLE_CLASS_NAME LIBM_SYMBOLS_CLASS_NAME
     29 #define LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST LIBM_SYMBOLS_LIST
     30 #include "webrtc/base/latebindingsymboltable.h.def"
     31 
     32 #define LATE_BINDING_SYMBOL_TABLE_CLASS_NAME LIBM_SYMBOLS_CLASS_NAME
     33 #define LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST LIBM_SYMBOLS_LIST
     34 #define LATE_BINDING_SYMBOL_TABLE_DLL_NAME "libm.so.6"
     35 #include "webrtc/base/latebindingsymboltable.cc.def"
     36 
     37 TEST(LateBindingSymbolTable, libm) {
     38   LibmTestSymbolTable table;
     39   EXPECT_FALSE(table.IsLoaded());
     40   ASSERT_TRUE(table.Load());
     41   EXPECT_TRUE(table.IsLoaded());
     42   EXPECT_EQ(table.acos()(0.5), acos(0.5));
     43   EXPECT_EQ(table.sin()(0.5), sin(0.5));
     44   EXPECT_EQ(table.tan()(0.5), tan(0.5));
     45   // It would be nice to check that the addresses are the same, but the nature
     46   // of dynamic linking and relocation makes them actually be different.
     47   table.Unload();
     48   EXPECT_FALSE(table.IsLoaded());
     49 }
     50 
     51 #else
     52 #error Not implemented
     53 #endif
     54 
     55 }  // namespace rtc
     56