Implement BigintOperations::ToDecimalCString.

runtime/vm/bigint_operations_test.cc

Index: runtime/vm/bigint_operations_test.cc
diff --git a/runtime/vm/bigint_operations_test.cc b/runtime/vm/bigint_operations_test.cc
index 9c499dac147a44d690b74d16d5426cb58642a714..398339f9944157365f90b46c9a493e68df677712 100644
--- a/runtime/vm/bigint_operations_test.cc
+++ b/runtime/vm/bigint_operations_test.cc
@@ -391,21 +391,20 @@ TEST_CASE(BigintHexStrings) {
 }
 
 
-#if 0
-// TODO(florian): Add a ToDecString method in bigint operations.
-// Turn this test back on once it is implemented.
 TEST_CASE(BigintDecStrings) {
   {
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString("0x123"));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("291", str);
   }
 
   {
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString("0xaBcEf"));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("703727", str);
   }
 
@@ -413,7 +412,8 @@ TEST_CASE(BigintDecStrings) {
     const char* in = "0x123456789";
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString(in));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("4886718345", str);
   }
 
@@ -421,7 +421,8 @@ TEST_CASE(BigintDecStrings) {
     const char* in = "0xFFFFFFF";
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString(in));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("268435455", str);
   }
 
@@ -429,14 +430,16 @@ TEST_CASE(BigintDecStrings) {
     const char* in = "0x10000000";
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString(in));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("268435456", str);
   }
 
   {
     const char* in = "0x123456789ABCDEF01234567890ABCDEF0123456789ABCDEF0";
     const Bigint& bigint = Bigint::Handle(BigintOperations::NewFromCString(in));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("7141946863373290020600059860922167424469804758405880798960",
         str);
   }
@@ -452,28 +455,32 @@ TEST_CASE(BigintDecStrings) {
   {
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString("-0x123"));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("-291", str);
   }
 
   {
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString("-0xaBcEf"));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("-703727", str);
   }
 
   {
     const char* in = "-0x123456789";
     const Bigint& bigint = Bigint::Handle(BigintOperations::NewFromCString(in));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("-4886718345", str);
   }
 
   {
     const char* in = "-0x123456789ABCDEF01234567890ABCDEF0123456789ABCDEF0";
     const Bigint& bigint = Bigint::Handle(BigintOperations::NewFromCString(in));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("-7141946863373290020600059860922167424469804758405880798960",
         str);
   }
@@ -489,11 +496,11 @@ TEST_CASE(BigintDecStrings) {
   {
     const Bigint& bigint = Bigint::Handle(
         BigintOperations::NewFromCString("0x000000123"));
-    const char* str = BigintOperations::ToDecCString(bigint, &ZoneAllocator);
+    const char* str =
+        BigintOperations::ToDecimalCString(bigint, &ZoneAllocator);
     EXPECT_STREQ("291", str);
   }
 }
-#endif
 
 
 static void TestBigintCompare(const char* a, const char* b, int compare) {