[taler-exchange] branch master updated: fix #6213

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 0774fd70 fix #6213
0774fd70 is described below

commit 0774fd7020a4f70beb13ddf668686c44f8ebb84c
Author: Christian Grothoff <address@hidden>
AuthorDate: Thu Apr 23 11:59:12 2020 +0200

    fix #6213
---
 src/include/taler_amount_lib.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/include/taler_amount_lib.h b/src/include/taler_amount_lib.h
index 4f77c322..63c5dba4 100644
--- a/src/include/taler_amount_lib.h
+++ b/src/include/taler_amount_lib.h
@@ -51,6 +51,9 @@ extern "C"
  *
  * Note that we need sub-cent precision here as transaction fees might
  * be that low, and as we want to support microdonations.
+ *
+ * An actual `struct Amount a` thus represents
+ * "a.value + (a.fraction / #TALER_AMOUNT_FRAC_BASE)" units of "a.currency".
  */
 #define TALER_AMOUNT_FRAC_BASE 100000000
 
@@ -76,7 +79,7 @@ struct TALER_AmountNBO
   uint64_t value GNUNET_PACKED;
 
   /**
-   * Additinal fractional value, in NBO.
+   * Fraction (integer multiples of #TALER_AMOUNT_FRAC_BASE), in NBO.
    */
   uint32_t fraction GNUNET_PACKED;
 
@@ -100,7 +103,7 @@ struct TALER_Amount
   uint64_t value;
 
   /**
-   * Fraction (denominator of fraction)
+   * Fraction (integer multiples of #TALER_AMOUNT_FRAC_BASE).
    */
   uint32_t fraction;
 

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