From 4b43b375b7abae22070cd86bfc26a8222233150e Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Wed, 31 Jan 2024 13:24:56 -0500
Subject: check for overlapping pointers

---
 src/stdlib/strtold.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/stdlib/strtold.c')

diff --git a/src/stdlib/strtold.c b/src/stdlib/strtold.c
index 43fc77bd..b658152b 100644
--- a/src/stdlib/strtold.c
+++ b/src/stdlib/strtold.c
@@ -3,6 +3,7 @@
 #include <ctype.h>
 #include <errno.h>
 #include <math.h>
+#include <string.h>
 #include "_stdlib.h"
 
 /** convert string to floating-point **/
@@ -17,6 +18,7 @@ long double strtold(const char * restrict nptr, char ** restrict endptr)
 	long double nan = NAN;
 
 	SIGNAL_SAFE(0);
+	ASSERT_NOOVERLAP(nptr, strlen(nptr), endptr, sizeof(*endptr));
 
 	#include "_strtod.h"
 
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