Rounding to nearest 0 should be a no-op

1 files changed, 6 insertions, 0 deletions

diff --git a/src/utils/rounding.h b/src/utils/rounding.h
index c77ab9b52..78b9eeb5d 100644
--- a/src/utils/rounding.h
+++ b/src/utils/rounding.h
@@ -21,6 +21,9 @@ namespace Botan {
 template<typename T>
 inline T round_up(T n, T align_to)
    {
+   if(align_to == 0)
+      return n;
+
    if(n % align_to || n == 0)
       n += align_to - (n % align_to);
    return n;
@@ -35,6 +38,9 @@ inline T round_up(T n, T align_to)
 template<typename T>
 inline T round_down(T n, T align_to)
    {
+   if(align_to == 0)
+      return n;
+
    return (n - (n % align_to));
    }