Remove to_string, replacing with std::to_string

Convert to_u32bit to use the new C++0x library func stoul instead of
hand-written code.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/utils/charset.cpp b/src/utils/charset.cpp
index 53125cad1..e98cf601e 100644
--- a/src/utils/charset.cpp
+++ b/src/utils/charset.cpp
@@ -119,7 +119,7 @@ std::string transcode(const std::string& str,
       return ucs2_to_latin1(str);
 
    throw Invalid_Argument("Unknown transcoding operation from " +
-                          to_string(from) + " to " + to_string(to));
+                          std::to_string(from) + " to " + std::to_string(to));
    }
 
 /*