cngf-pf

commit 1e6942b9f9ad1018f0ed75947ebe69cda5b047f5
parent ee23eff931ba11a8789ed2d47b9b42802da4fa7d
Author: Anders Damsgaard <anders@adamsgaard.dk>
Date:   Thu, 18 Mar 2021 14:41:37 +0100

arrays.[ch]: check memory allocation and exit on fail, add some helper functions

Diffstat:
M
arrays.c
 | 
10
++++++++--

1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/arrays.c b/arrays.c
@@ -106,7 +106,7 @@ zeros(const int n)
 	double *x;
 
 	check_magnitude(__func__, 1, n);
-	if (!(x = malloc(n * sizeof(double))))
+	if (!(x = calloc(n, sizeof(double))))
 		err(1, "%s: x calloc", __func__);
 	for (i = 0; i < n; ++i)
 		x[i] = 0.0;
@@ -150,8 +150,14 @@ initval(const double value, const int n)
 double *
 empty(const int n)
 {
+	double *out;
+
 	check_magnitude(__func__, 1, n);
-	return malloc(n * sizeof(double));
+
+	if (!(out = malloc(n * sizeof(double))))
+		err(1, "%s: calloc", __func__);
+
+	return out;
 }
 
 /* Return largest value in array `a` with size `n` */