win: truncation warnings in minidump_context_test_util.cc

minidump/test/minidump_context_test_util.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 101 matching lines @@
   context->r8 = value++;
   context->r9 = value++;
   context->r10 = value++;
   context->r11 = value++;
   context->r12 = value++;
   context->r13 = value++;
   context->r14 = value++;
   context->r15 = value++;
   context->rip = value++;
   context->eflags = value++;
-  context->cs = value++;
-  context->fs = value++;
-  context->gs = value++;
+  context->cs = static_cast<uint16_t>(value++);
+  context->fs = static_cast<uint16_t>(value++);
+  context->gs = static_cast<uint16_t>(value++);
 
   InitializeCPUContextX86_64Fxsave(&context->fxsave, &value);
 
   // mxcsr appears twice, and the two values should be aliased.
   context->mx_csr = context->fxsave.mxcsr;
 
   context->dr0 = value++;
   context->dr1 = value++;
   context->dr2 = value++;
   context->dr3 = value++;
   value += 2;  // Minidumps don’t carry dr4 or dr5.
   context->dr6 = value++;
   context->dr7 = value++;
 
   // Set these fields last, because they have no analogues in CPUContextX86_64.
   context->p1_home = value++;
   context->p2_home = value++;
   context->p3_home = value++;
   context->p4_home = value++;
   context->p5_home = value++;
   context->p6_home = value++;
-  context->ds = value++;
-  context->es = value++;
-  context->ss = value++;
+  context->ds = static_cast<uint16_t>(value++);
+  context->es = static_cast<uint16_t>(value++);
+  context->ss = static_cast<uint16_t>(value++);
   for (size_t index = 0; index < arraysize(context->vector_register); ++index) {
     context->vector_register[index].lo = value++;
     context->vector_register[index].hi = value++;
   }
   context->vector_control = value++;
   context->debug_control = value++;
   context->last_branch_to_rip = value++;
   context->last_branch_from_rip = value++;
   context->last_exception_to_rip = value++;
   context->last_exception_from_rip = value++;
@@ skipping 211 matching lines @@
     EXPECT_EQ(expected.last_branch_to_rip, observed->last_branch_to_rip);
     EXPECT_EQ(expected.last_branch_from_rip, observed->last_branch_from_rip);
     EXPECT_EQ(expected.last_exception_to_rip, observed->last_exception_to_rip);
     EXPECT_EQ(expected.last_exception_from_rip,
               observed->last_exception_from_rip);
   }
 }
 
 }  // namespace test
 }  // namespace crashpad