reduce code duplication

src/lib/exchange_api_common.c

@@ -42,7 +42,6 @@ TALER_EXCHANGE_verify_coin_history (const char *currency,
                                     struct TALER_Amount *total)
 {
   size_t len;
-  int add;
   struct TALER_Amount rtotal;
 
   if (NULL == history)
@@ -64,6 +63,7 @@ TALER_EXCHANGE_verify_coin_history (const char *currency,
                                         &rtotal));
   for (size_t off=0;off<len;off++)
   {
+    int add;
     json_t *transaction;
     struct TALER_Amount amount;
     const char *type;

src/lib/testing_api_cmd_refresh.c

@@ -873,12 +873,10 @@ refresh_melt_run (void *cls,
 {
   struct RefreshMeltState *rms = cls;
   unsigned int num_fresh_coins;
-  const struct TALER_TESTING_Command *coin_command;
   /* FIXME:  this should be dynamic */
   const char *melt_fresh_amounts[] = {
     "EUR:1", "EUR:1", "EUR:1", "EUR:0.1",
     NULL};
-  const struct TALER_EXCHANGE_DenomPublicKey *fresh_pk;
 
   rms->is = is;
   rms->noreveal_index = UINT16_MAX;
@@ -895,8 +893,9 @@ refresh_melt_run (void *cls,
     struct TALER_Amount fresh_amount;
     const struct TALER_DenominationSignature *melt_sig;
     const struct TALER_EXCHANGE_DenomPublicKey *melt_denom_pub;
-
+    const struct TALER_TESTING_Command *coin_command;
     const struct MeltDetails *md = &rms->melted_coin;
+
     if (NULL == (coin_command
       = TALER_TESTING_interpreter_lookup_command
         (is, md->coin_reference)))
@@ -945,6 +944,8 @@ refresh_melt_run (void *cls,
 
     for (unsigned int i=0;i<num_fresh_coins;i++)
     {
+      const struct TALER_EXCHANGE_DenomPublicKey *fresh_pk;
+
       if (GNUNET_OK != TALER_string_to_amount
         (melt_fresh_amounts[i], &fresh_amount))
       {

src/lib/testing_auditor_api_cmd_deposit_confirmation.c

@@ -263,7 +263,23 @@ deposit_confirmation_run (void *cls,
   GNUNET_assert (GNUNET_OK ==
                  TALER_string_to_amount (dcs->amount_without_fee,
                                          &amount_without_fee));
+  {
+    struct GNUNET_JSON_Specification spec[] = {
+      GNUNET_JSON_spec_absolute_time ("timestamp", &timestamp),
+      GNUNET_JSON_spec_absolute_time ("refund_deadline", &refund_deadline),
+      GNUNET_JSON_spec_end()
+    };
 
+    if (GNUNET_OK !=
+        GNUNET_JSON_parse (contract_terms,
+                           spec,
+                           NULL, NULL))
+    {
+      GNUNET_break (0);
+      TALER_TESTING_interpreter_fail (is);
+      return;
+    }
+  }
   dcs->dc = TALER_AUDITOR_deposit_confirmation
     (dcs->auditor,
      &h_wire,

src/util/amount.c

@@ -538,6 +538,29 @@ TALER_amount_normalize (struct TALER_Amount *amount)
 }
 
 
+/**
+ * Convert the fraction of @a amount to a string
+ * in decimals.
+ *
+ * @param amount value to convert
+ * @param tail[out] where to write the reesult
+ */
+static void
+amount_to_tail (const struct TALER_Amount *amount,
+                char tail[TALER_AMOUNT_FRAC_LEN + 1])
+{
+  uint32_t n = amount->fraction;
+  unsigned int i;
+
+  for (i = 0; (i < TALER_AMOUNT_FRAC_LEN) && (0 != n); i++)
+  {
+    tail[i] = '0' + (n / (TALER_AMOUNT_FRAC_BASE / 10));
+    n = (n * 10) % (TALER_AMOUNT_FRAC_BASE);
+  }
+  tail[i] = '\0';
+}
+
+
 /**
  * Convert amount to string.
  *
@@ -548,9 +571,6 @@ char *
 TALER_amount_to_string (const struct TALER_Amount *amount)
 {
   char *result;
-  unsigned int i;
-  uint32_t n;
-  char tail[TALER_AMOUNT_FRAC_LEN + 1];
   struct TALER_Amount norm;
 
   if (GNUNET_YES != TALER_amount_is_valid (amount))
@@ -558,14 +578,12 @@ TALER_amount_to_string (const struct TALER_Amount *amount)
   norm = *amount;
   GNUNET_break (GNUNET_SYSERR !=
                 TALER_amount_normalize (&norm));
-  if (0 != (n = norm.fraction))
+  if (0 != norm.fraction)
   {
-    for (i = 0; (i < TALER_AMOUNT_FRAC_LEN) && (0 != n); i++)
-    {
-      tail[i] = '0' + (n / (TALER_AMOUNT_FRAC_BASE / 10));
-      n = (n * 10) % (TALER_AMOUNT_FRAC_BASE);
-    }
-    tail[i] = '\0';
+    char tail[TALER_AMOUNT_FRAC_LEN + 1];
+
+    amount_to_tail (&norm,
+                    tail);
     GNUNET_asprintf (&result,
                      "%s:%llu.%s",
                      norm.currency,
@@ -594,9 +612,6 @@ const char *
 TALER_amount2s (const struct TALER_Amount *amount)
 {
   static char result[TALER_AMOUNT_FRAC_LEN + TALER_CURRENCY_LEN + 3 + 12];
-  unsigned int i;
-  uint32_t n;
-  char tail[TALER_AMOUNT_FRAC_LEN + 1];
   struct TALER_Amount norm;
 
   if (GNUNET_YES != TALER_amount_is_valid (amount))
@@ -604,14 +619,12 @@ TALER_amount2s (const struct TALER_Amount *amount)
   norm = *amount;
   GNUNET_break (GNUNET_SYSERR !=
                 TALER_amount_normalize (&norm));
-  if (0 != (n = norm.fraction))
+  if (0 != norm.fraction)
   {
-    for (i = 0; (i < TALER_AMOUNT_FRAC_LEN) && (0 != n); i++)
-    {
-      tail[i] = '0' + (n / (TALER_AMOUNT_FRAC_BASE / 10));
-      n = (n * 10) % (TALER_AMOUNT_FRAC_BASE);
-    }
-    tail[i] = '\0';
+    char tail[TALER_AMOUNT_FRAC_LEN + 1];
+
+    amount_to_tail (&norm,
+                    tail);
     GNUNET_snprintf (result,
                      sizeof (result),
                      "%s:%llu.%s",