aidl-cpp: Use |ParseInt| util for hex conversion am: 9d7810ac16

am: 14e533e2cf

Change-Id: Ic6c8f81a1c3f7744cdd5cd3e05ba02015cd4b1c7

1 files changed, 5 insertions, 9 deletions

diff --git a/aidl_language.cpp b/aidl_language.cpp
index 6af55f8..bbe305b 100644
--- a/aidl_language.cpp
+++ b/aidl_language.cpp
@@ -6,6 +6,7 @@
 #include <string.h>
 #include <string>
 
+#include <android-base/parseint.h>
 #include <android-base/strings.h>
 
 #include "aidl_language_y.h"
@@ -96,19 +97,14 @@ AidlIntConstant::AidlIntConstant(std::string name,
                                  std::string value,
                                  unsigned line_number)
     : name_(name) {
-  char *end;
-  // Use long long to ensure 0xFFFFFFFF -> -1 works on 32 bit devices.
-  unsigned long long int long_value = std::strtoull(value.c_str(), &end, 16);
-  // Ensure that we parsed the string fully and the value fits in int32.
-  if ((*end != '\0') ||
-      ((long_value == ULLONG_MAX) && (errno == ERANGE)) ||
-      (long_value > std::numeric_limits<uint32_t>::max())) {
+  uint32_t unsigned_val;
+  if (!android::base::ParseUint(value.c_str(), &unsigned_val)) {
     is_valid_ = false;
     LOG(ERROR) << "Found invalid int value '" << value
                << "' on line " << line_number;
   } else {
-    // Converting from unsigned long to signed integer.
-    value_ = long_value;
+    // Converting from unsigned to signed integer.
+    value_ = unsigned_val;
     is_valid_ = true;
   }
 }