Don't cast zero to a non-function pointer; use NULL instead.

Better still, omit it when BSS does the job, or C's treatment of
non-zero as true is sufficient.

diff --git a/sbr/context_read.c b/sbr/context_read.c
index 8350b98..a8d1420 100644 (file)
--- a/sbr/context_read.c
+++ b/sbr/context_read.c
@@ -140,7 +140,7 @@ context_read (void)
     ctxpath = getcpy (m_maildir (cp));
 
     if ((ib = lkfopendata (ctxpath, "r", &failed_to_lock))) {
-       readconfig ((struct node **) 0, ib, cp, 1);
+       readconfig(NULL, ib, cp, 1);
        lkfclosedata (ib, ctxpath);
     }
 }

diff --git a/sbr/fmt_compile.c b/sbr/fmt_compile.c
index 389e16c..a9dad42 100644 (file)
--- a/sbr/fmt_compile.c
+++ b/sbr/fmt_compile.c
@@ -354,7 +354,7 @@ lookup(char *name)
 
        t++;
     }
-    return (struct ftable *) 0;
+    return NULL;
 }
 
 
@@ -572,7 +572,7 @@ do_name(char *sp, int preprocess)
     case FT_GETMYMBOX:
     case FT_GETMYADDR:
        if (!primed) {
-           ismymbox ((struct mailname *) 0);
+           ismymbox(NULL);
            primed++;
        }
        /* FALLTHRU */
@@ -732,7 +732,7 @@ do_func(char *sp)
     }
 
     case TF_NOW:
-       LV(t->f_type, time((time_t *) 0));
+       LV(t->f_type, time(NULL));
        break;
 
     case TF_EXPR_SV:

diff --git a/sbr/fmt_scan.c b/sbr/fmt_scan.c
index 0de7a43..e80edc1 100644 (file)
--- a/sbr/fmt_scan.c
+++ b/sbr/fmt_scan.c
@@ -841,7 +841,7 @@ fmt_scan (struct format *format, charstring_t scanlp, int width, int *dat,
        case FT_LV_RCLOCK:
            if ((value = fmt->f_comp->c_tws->tw_clock) == 0)
                value = dmktime(fmt->f_comp->c_tws);
-           value = time((time_t *) 0) - value;
+           value = time(NULL) - value;
            break;
        case FT_LV_DAYF:
            if (!(((tws = fmt->f_comp->c_tws)->tw_flags) & (TW_SEXP|TW_SIMP)))

diff --git a/uip/annosbr.c b/uip/annosbr.c
index 124c77e..7e7cefd 100644 (file)
--- a/uip/annosbr.c
+++ b/uip/annosbr.c
@@ -140,7 +140,7 @@ annolist(char *file, char *comp, char *text, int number)
            if (number)
                (void)printf("%d\t", ++count);
 
-           if (text == NULL && (sp = strrchr(cp, '/')) != (char *)0)
+           if (text == NULL && (sp = strrchr(cp, '/')))
                cp = sp + 1;
 
             puts(cp);

diff --git a/uip/mhbuild.c b/uip/mhbuild.c
index d3761c0..faf9aa3 100644 (file)
--- a/uip/mhbuild.c
+++ b/uip/mhbuild.c
@@ -289,7 +289,7 @@ main (int argc, char **argv)
      */
     if ((cp = getenv ("MHBUILD"))) {
        if ((fp = fopen (cp, "r"))) {
-           readconfig ((struct node **) 0, fp, cp, 0);
+           readconfig(NULL, fp, cp, 0);
            fclose (fp);
        } else {
            admonish ("", "unable to read $MHBUILD profile (%s)", cp);
@@ -300,7 +300,7 @@ main (int argc, char **argv)
      * Read the standard profile setup
      */
     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
-       readconfig ((struct node **) 0, fp, cp, 0);
+       readconfig(NULL, fp, cp, 0);
        fclose (fp);
     }
 

diff --git a/uip/mhfixmsg.c b/uip/mhfixmsg.c
index a05177a..438f8a6 100644 (file)
--- a/uip/mhfixmsg.c
+++ b/uip/mhfixmsg.c
@@ -298,7 +298,7 @@ main (int argc, char **argv) {
      * Read the standard profile setup
      */
     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
-        readconfig ((struct node **) 0, fp, cp, 0);
+        readconfig(NULL, fp, cp, 0);
         fclose (fp);
     }
 

diff --git a/uip/mhn.c b/uip/mhn.c
index bc0cd62..68def2b 100644 (file)
--- a/uip/mhn.c
+++ b/uip/mhn.c
@@ -311,7 +311,7 @@ do_cache:
      */
     if ((cp = getenv ("MHN"))) {
        if ((fp = fopen (cp, "r"))) {
-           readconfig ((struct node **) 0, fp, cp, 0);
+           readconfig(NULL, fp, cp, 0);
            fclose (fp);
        } else {
            admonish ("", "unable to read $MHN profile (%s)", cp);
@@ -322,7 +322,7 @@ do_cache:
      * Read the standard profile setup
      */
     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
-       readconfig ((struct node **) 0, fp, cp, 0);
+       readconfig(NULL, fp, cp, 0);
        fclose (fp);
     }
 

diff --git a/uip/mhparse.c b/uip/mhparse.c
index 94fd50b..904c123 100644 (file)
--- a/uip/mhparse.c
+++ b/uip/mhparse.c
@@ -2326,7 +2326,7 @@ openExternal (CT ct, CT cb, CE ce, char **file, int *fd)
        goto ready_already;
     }
 
-    if (find_cache (ct, rcachesw, (int *) 0, cb->c_id,
+    if (find_cache(ct, rcachesw, NULL, cb->c_id,
                cachefile, sizeof(cachefile)) != NOTOK) {
        if ((ce->ce_fp = fopen (cachefile, "r"))) {
            ce->ce_file = mh_xstrdup(cachefile);

diff --git a/uip/mhshow.c b/uip/mhshow.c
index cf38ecf..8c604ad 100644 (file)
--- a/uip/mhshow.c
+++ b/uip/mhshow.c
@@ -280,7 +280,7 @@ do_cache:
      */
     if ((cp = getenv ("MHSHOW"))) {
        if ((fp = fopen (cp, "r"))) {
-           readconfig ((struct node **) 0, fp, cp, 0);
+           readconfig(NULL, fp, cp, 0);
            fclose (fp);
        } else {
            admonish ("", "unable to read $MHSHOW profile (%s)", cp);
@@ -291,7 +291,7 @@ do_cache:
      * Read the standard profile setup
      */
     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
-       readconfig ((struct node **) 0, fp, cp, 0);
+       readconfig(NULL, fp, cp, 0);
        fclose (fp);
     }
 

diff --git a/uip/mhstore.c b/uip/mhstore.c
index 1ca2149..2b08a6b 100644 (file)
--- a/uip/mhstore.c
+++ b/uip/mhstore.c
@@ -211,7 +211,7 @@ do_cache:
      */
     if ((cp = getenv ("MHSTORE"))) {
        if ((fp = fopen (cp, "r"))) {
-           readconfig ((struct node **) 0, fp, cp, 0);
+           readconfig(NULL, fp, cp, 0);
            fclose (fp);
        } else {
            admonish ("", "unable to read $MHSTORE profile (%s)", cp);
@@ -222,7 +222,7 @@ do_cache:
      * Read the standard profile setup
      */
     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
-       readconfig ((struct node **) 0, fp, cp, 0);
+       readconfig(NULL, fp, cp, 0);
        fclose (fp);
     }
 

diff --git a/uip/sortm.c b/uip/sortm.c
index 84f8e08..7e966db 100644 (file)
--- a/uip/sortm.c
+++ b/uip/sortm.c
@@ -43,7 +43,7 @@ struct smsg {
 static struct smsg *smsgs;
 int nmsgs;
 
-char *subjsort = (char *) 0;    /* sort on subject if != 0 */
+char *subjsort;                 /* sort on subject if != 0 */
 time_t datelimit = 0;
 int submajor = 0;              /* if true, sort on subject-major */
 int verbose;