From f2e937f1cb43d15ad570338b3b1fe3faa7260ff9 Mon Sep 17 00:00:00 2001
From: "ted.mielczarek" <ted.mielczarek@4c0a9323-5329-0410-9bdc-e9ce6186880e>
Date: Tue, 21 Feb 2012 23:15:30 +0000
Subject: Add support for @ operator to PostfixEvaluator R=mark at
 http://breakpad.appspot.com/349002/

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@923 4c0a9323-5329-0410-9bdc-e9ce6186880e
---
 src/processor/postfix_evaluator-inl.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/processor/postfix_evaluator-inl.h')

diff --git a/src/processor/postfix_evaluator-inl.h b/src/processor/postfix_evaluator-inl.h
index b24f092c..22faf7b2 100644
--- a/src/processor/postfix_evaluator-inl.h
+++ b/src/processor/postfix_evaluator-inl.h
@@ -83,7 +83,8 @@ bool PostfixEvaluator<ValueType>::EvaluateInternal(
       BINARY_OP_SUBTRACT,
       BINARY_OP_MULTIPLY,
       BINARY_OP_DIVIDE_QUOTIENT,
-      BINARY_OP_DIVIDE_MODULUS
+      BINARY_OP_DIVIDE_MODULUS,
+      BINARY_OP_ALIGN
     };
 
     BinaryOperation operation = BINARY_OP_NONE;
@@ -97,6 +98,8 @@ bool PostfixEvaluator<ValueType>::EvaluateInternal(
       operation = BINARY_OP_DIVIDE_QUOTIENT;
     else if (token == "%")
       operation = BINARY_OP_DIVIDE_MODULUS;
+    else if (token == "@")
+      operation = BINARY_OP_ALIGN;
 
     if (operation != BINARY_OP_NONE) {
       // Get the operands.
@@ -126,6 +129,10 @@ bool PostfixEvaluator<ValueType>::EvaluateInternal(
         case BINARY_OP_DIVIDE_MODULUS:
           result = operand1 % operand2;
           break;
+        case BINARY_OP_ALIGN:
+          result =
+            operand1 & (reinterpret_cast<ValueType>(-1) ^ (operand2 - 1));
+          break;
         case BINARY_OP_NONE:
           // This will not happen, but compilers will want a default or
           // BINARY_OP_NONE case.
-- 
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