fortify-headers

commit 520e7e4a631cc038b3e867b2255235da35a98ece
parent 6939e3382a232d20882c1c7e74274132de154bb6
Author: jvoisin <julien.voisin@dustri.org>
Date:   Fri, 14 Jun 2024 19:46:14 +0200

Fix some pointer-arithmetic warnings

This should fix the second part of #59

Diffstat:
M
include/fortify-headers.h
 | 
4
++--
M
tests/Makefile
 | 
2
+-

2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/fortify-headers.h b/include/fortify-headers.h
@@ -141,8 +141,8 @@
  * since gcc seems to like to generate code that relies on dst == src */
 #define __fh_overlap(a, len_a, b, len_b) \
 	( \
-		((a) < (b) && (b) < ((a) + (__fh_size_t)(len_a))) \
-	     || ((b) < (a) && (a) < ((b) + (__fh_size_t)(len_b))) \
+		((char*)(a) < (char*)(b) && (char*)(b) < ((char*)(a) + (__fh_size_t)(len_a))) \
+	     || ((char*)(b) < (char*)(a) && (char*)(a) < ((char*)(b) + (__fh_size_t)(len_b))) \
         )
 
 /*
diff --git a/tests/Makefile b/tests/Makefile
@@ -1,4 +1,4 @@
-CFLAGS+=-I../include/ -D_FORTIFY_SOURCE=3 -static -O2 -DPEDANTIC_CHECKS -Wno-format
+CFLAGS+=-I../include/ -D_FORTIFY_SOURCE=3 -static -O2 -DPEDANTIC_CHECKS -Wno-format -Werror=pointer-arith
 
 COMPTIME_TARGETS= \
 	test_memcpy_overwrite_under  \