From 82cd2c7f37189e1328a81b936b637c78de73b3e1 Mon Sep 17 00:00:00 2001
From: Francois Perrad <francois.perrad@gadz.org>
Date: Sun, 23 Sep 2018 09:39:53 +0200
Subject: [PATCH] use NULL instead of 0

---
 bn_mp_tc_and.c    | 2 +-
 bn_mp_tc_div_2d.c | 4 ++--
 bn_mp_tc_or.c     | 2 +-
 bn_mp_tc_xor.c    | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/bn_mp_tc_and.c b/bn_mp_tc_and.c
index 0e28ca8..800681a 100644
--- a/bn_mp_tc_and.c
+++ b/bn_mp_tc_and.c
@@ -18,7 +18,7 @@ int mp_tc_and(const mp_int *a, const mp_int *b, mp_int *c)
 {
    int res = MP_OKAY, bits;
    int as = mp_isneg(a), bs = mp_isneg(b), s = 0;
-   mp_int *mx = 0, _mx, acpy, bcpy;
+   mp_int *mx = NULL, _mx, acpy, bcpy;
 
    if (as || bs) {
       bits = MAX(mp_count_bits(a), mp_count_bits(b));
diff --git a/bn_mp_tc_div_2d.c b/bn_mp_tc_div_2d.c
index 5ea4e38..f341c9b 100644
--- a/bn_mp_tc_div_2d.c
+++ b/bn_mp_tc_div_2d.c
@@ -18,7 +18,7 @@ int mp_tc_div_2d(const mp_int *a, int b, mp_int *c)
 {
   int res;
   if (!mp_isneg(a)) {
-    return mp_div_2d(a, b, c, 0);
+    return mp_div_2d(a, b, c, NULL);
   }
 
   res = mp_add_d(a, 1, c);
@@ -26,7 +26,7 @@ int mp_tc_div_2d(const mp_int *a, int b, mp_int *c)
     return res;
   }
 
-  res = mp_div_2d(c, b, c, 0);
+  res = mp_div_2d(c, b, c, NULL);
   return res == MP_OKAY ? mp_sub_d(c, 1, c) : res;
 }
 #endif
diff --git a/bn_mp_tc_or.c b/bn_mp_tc_or.c
index 1e7d583..344c20c 100644
--- a/bn_mp_tc_or.c
+++ b/bn_mp_tc_or.c
@@ -18,7 +18,7 @@ int mp_tc_or(const mp_int *a, const mp_int *b, mp_int *c)
 {
    int res = MP_OKAY, bits;
    int as = mp_isneg(a), bs = mp_isneg(b), s = 0;
-   mp_int *mx = 0, _mx, acpy, bcpy;
+   mp_int *mx = NULL, _mx, acpy, bcpy;
 
    if (as || bs) {
       bits = MAX(mp_count_bits(a), mp_count_bits(b));
diff --git a/bn_mp_tc_xor.c b/bn_mp_tc_xor.c
index be9b9d8..09547a5 100644
--- a/bn_mp_tc_xor.c
+++ b/bn_mp_tc_xor.c
@@ -18,7 +18,7 @@ int mp_tc_xor(const mp_int *a, const mp_int *b, mp_int *c)
 {
    int res = MP_OKAY, bits;
    int as = mp_isneg(a), bs = mp_isneg(b), s = 0;
-   mp_int *mx = 0, _mx, acpy, bcpy;
+   mp_int *mx = NULL, _mx, acpy, bcpy;
 
    if (as || bs) {
       bits = MAX(mp_count_bits(a), mp_count_bits(b));