generate logic to lookup HTTP status code by ec

1 files changed, 26 insertions, 6 deletions

diff --git a/gnu-taler-error-codes/c.footer b/gnu-taler-error-codes/c.footer
index d6897b6..118aa08 100644
--- a/gnu-taler-error-codes/c.footer
+++ b/gnu-taler-error-codes/c.footer
@@ -1,12 +1,6 @@
 
 
 
-/**
- * Returns a hint for a given error code.
- *
- * @param ec the error code.
- * @return the hint if it could be found, otherwise "<no hint found>".
- */
 const char *
 TALER_ErrorCode_get_hint (enum TALER_ErrorCode ec)
 {
@@ -31,3 +25,29 @@ TALER_ErrorCode_get_hint (enum TALER_ErrorCode ec)
   }
   return "<no hint found>";
 }
+
+
+const unsigned int
+TALER_ErrorCode_get_http_status (enum TALER_ErrorCode ec)
+{
+  unsigned int lower = 0;
+  unsigned int upper = code_hint_pairs_length - 1;
+  unsigned int mid = upper / 2;
+  while (lower <= upper)
+  {
+    mid = (upper + lower) / 2;
+    if (code_hint_pairs[mid].ec < ec)
+    {
+      lower = mid + 1;
+    }
+    else if (code_hint_pairs[mid].ec > ec)
+    {
+      upper = mid - 1;
+    }
+    else
+    {
+      return code_hint_pairs[mid].http_status;
+    }
+  }
+  return UINT_MAX;
+}