try a realloc patch

jcupitt · jcupitt · commit 3983105c5611 · 2025-02-25T12:17:08.000Z
diff --git a/src/kplot/reallocarray.c b/src/kplot/reallocarray.c
@@ -35,5 +35,10 @@ reallocarray(void *optr, size_t nmemb, size_t size)
 		errno = ENOMEM;
 		return NULL;
 	}
-	return realloc(optr, size * nmemb);
+
+	// some realloc() on some platforms fail with realloc(0)
+	if (optr)
+		return realloc(optr, size * nmemb);
+	else
+		return malloc(size * nmemb);
 }

Original file line number	Diff line number	Diff line change
`@@ -35,5 +35,10 @@ reallocarray(void *optr, size_t nmemb, size_t size)`
`35`	`35`	`errno = ENOMEM;`
`36`	`36`	`return NULL;`
`37`	`37`	`}`
`38`		`- return realloc(optr, size * nmemb);`
	`38`	`+`
	`39`	`+ // some realloc() on some platforms fail with realloc(0)`
	`40`	`+ if (optr)`
	`41`	`+ return realloc(optr, size * nmemb);`
	`42`	`+ else`
	`43`	`+ return malloc(size * nmemb);`
`39`	`44`	`}`