X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=fec.c;h=fe02487dee71c405e69892deb2e601a518e00bdc;hp=043a1f21869617869d2c6d0573bf71777611e2a3;hb=11f3700b4d2e932a31f953e1590ad5d64d1aa2d6;hpb=c19a0921ea3a8cd9d0e35cb2b09748c3f9f607ef

diff --git a/fec.c b/fec.c
index 043a1f21..fe02487d 100644
--- a/fec.c
+++ b/fec.c
@@ -214,7 +214,7 @@ static void matmul(unsigned char *a, unsigned char *b, unsigned char *c,
  * Compute the inverse of a matrix.
  *
  * k is the size of the matrix 'src' (Gauss-Jordan, adapted from Numerical
- * Recipes in C). Returns -1 if 'src' is singular.
+ * Recipes in C). Returns negative on errors.
  */
 static int invert_mat(unsigned char *src, int k)
 {
@@ -394,8 +394,13 @@ static void init_fec(void)
 	fec_initialized = 1;
 }
 
+/** Internal FEC parameters. */
 struct fec_parms {
-	int k, n; /* parameters of the code */
+	/** Number of data slices. */
+	int k;
+	/** Number of slices (including redundant slices). */
+	int n;
+	/** The encoding matrix, computed by init_fec(). */
 	unsigned char *enc_matrix;
 };