refactormain

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/decay_exponential.c b/lib/decay_exponential.c
index 97afe36..506d225 100644
--- a/lib/decay_exponential.c
+++ b/lib/decay_exponential.c
@@ -23,7 +23,7 @@ ts_parameter_t const ts_decay_exponential_p = { .n_inputs = 1, .n_outputs = 1, .
 uint_t ts_decay_exponential_offset( ts_constant_t const *c )
 {
 	( void )c;
-	return ( c ? ((ts_decay_exponential_params_t *)c)->k : 0 );
+	return ( c ? ((ts_decay_exponential_params_t const *)c)->k : 0 );
 }
 
 int ts_decay_exponential(
@@ -34,8 +34,9 @@ int ts_decay_exponential(
 {
 	TS_PROLOGUE( ts_decay_exponential_p );
 	if ( !c ) return -1;
-	uint_t k = ((ts_decay_exponential_params_t *)c)->k;
-	if (k == 0 || n <= k) return -1;
+	uint_t k = ((ts_decay_exponential_params_t const *)c)->k;
+	if (k == 0) return -1;
+	if (n <= k) return -1;
 
 	fp_t a = ( fp_t ) 1.0 - _ts_reciprocal( k );