1 files changed, 2 insertions, 2 deletions
diff --git a/src/c/quikr_functions.h b/src/c/quikr_functions.h
index 1826427..6ebde00 100644
--- a/src/c/quikr_functions.h
+++ b/src/c/quikr_functions.h
@@ -1,11 +1,11 @@
 // count the sequences in a fasta file
-int count_sequences(char *filename);
+unsigned long long count_sequences(const char *filename);
 
 // normalize a matrix by dividing each element by the sum of it's column
 void normalize_matrix(double *matrix, int height, int width);
 
 // load a sensing matrix
-double *load_sensing_matrix(char *filename, int height, int width);
+struct sensing_matrix *load_sensing_matrix(const char *filename);
 
 // load a count matrix
 double *load_count_matrix(char *filename, int width, int kmer);