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	tarrays.c: check return from memory allocations and exit on errors - granular -…
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	---
	commit 1c5cb83233d982f7110258f1ef54fdc422c70cff
	parent 2411376bd4ea88e2184dce638984407b56208f9a
	Author: Anders Damsgaard <[email protected]>
	Date: Thu, 18 Mar 2021 14:37:38 +0100

	arrays.c: check return from memory allocations and exit on errors

	Diffstat:
	M arrays.c \| 19 +++++++++++++------

	1 file changed, 13 insertions(+), 6 deletions(-)
	---
	diff --git a/arrays.c b/arrays.c
	t@@ -1,6 +1,7 @@
	#include <stdlib.h>
	#include <stdio.h>
	#include <math.h>
	+#include <err.h>

	#define DEG2RAD(x) (x*M_PI/180.0)

	t@@ -72,7 +73,8 @@ linspace(const double lower, const double upper, const int n)
	double dx;

	check_magnitude(__func__, 1, n);
	- x = malloc(n * sizeof(double));
	+ if (!(x = calloc(n, sizeof(double))))
	+ err(1, "%s: x calloc", __func__);
	dx = (upper - lower) / (double) (n - 1);
	for (i = 0; i < n; ++i)
	x[i] = lower + dx * i;
	t@@ -88,7 +90,8 @@ spacing(const double *x, const int n)
	double *dx;

	check_magnitude(__func__, 2, n);
	- dx = malloc((n - 1) * sizeof(double));
	+ if (!(dx = calloc((n - 1), sizeof(double))))
	+ err(1, "%s: dx calloc", __func__);
	for (i = 0; i < n - 1; ++i)
	dx[i] = x[i + 1] - x[i];

	t@@ -103,7 +106,8 @@ zeros(const int n)
	double *x;

	check_magnitude(__func__, 1, n);
	- x = malloc(n * sizeof(double));
	+ if (!(x = malloc(n * sizeof(double))))
	+ err(1, "%s: x calloc", __func__);
	for (i = 0; i < n; ++i)
	x[i] = 0.0;

	t@@ -118,7 +122,8 @@ ones(const int n)
	double *x;

	check_magnitude(__func__, 1, n);
	- 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] = 1.0;

	t@@ -133,7 +138,8 @@ initval(const double value, const int n)
	double *x;

	check_magnitude(__func__, 1, n);
	- 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] = value;

	t@@ -278,7 +284,8 @@ normalize(const double *in, const int n)
	double *out;

	check_magnitude(__func__, 1, n);
	- out = malloc(n * sizeof(double));
	+ if (!(out = calloc(n, sizeof(double))))
	+ err(1, "%s: out calloc", __func__);
	copy_values(in, out, n);
	max_val = max(out, n);