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authorLukas Fleischer <calcurse@cryptocrack.de>2011-11-02 18:59:40 +0100
committerLukas Fleischer <calcurse@cryptocrack.de>2011-11-02 19:33:23 +0100
commitce3f0ce76f59216ff82ecd79e180a5c59d3d60d0 (patch)
treea0d7618a75c1f9aae4efe2059efb90f8a066b546
parent7cc6305588acea9c7960abaacf823d62f798f5ba (diff)
downloadcalcurse-ce3f0ce76f59216ff82ecd79e180a5c59d3d60d0.tar.gz
calcurse-ce3f0ce76f59216ff82ecd79e180a5c59d3d60d0.zip
Make use of the NULL macro
Use this constant everywhere when referring to a null pointer instead of casting 0 to various types of pointers. Created using following semantic patch: @@ type type; @@ - (type *)0 + NULL Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
-rw-r--r--src/args.c32
-rw-r--r--src/calendar.c2
-rw-r--r--src/custom.c2
-rw-r--r--src/keys.c4
-rw-r--r--src/mem.c16
-rw-r--r--src/notify.c16
-rw-r--r--src/sigs.c2
-rw-r--r--src/utils.c4
8 files changed, 39 insertions, 39 deletions
diff --git a/src/args.c b/src/args.c
index 150b81c..be85fbe 100644
--- a/src/args.c
+++ b/src/args.c
@@ -906,10 +906,10 @@ parse_args (int argc, char **argv, struct conf *conf)
else if (gflag)
{
io_init (cfile, datadir);
- io_check_dir (path_dir, (int *)0);
- io_check_dir (path_notes, (int *)0);
- io_check_file (path_apts, (int *)0);
- io_check_file (path_todo, (int *)0);
+ io_check_dir (path_dir, NULL);
+ io_check_dir (path_notes, NULL);
+ io_check_file (path_apts, NULL);
+ io_check_file (path_todo, NULL);
io_load_app ();
io_load_todo ();
note_gc ();
@@ -920,13 +920,13 @@ parse_args (int argc, char **argv, struct conf *conf)
if (load_data)
{
io_init (cfile, datadir);
- io_check_dir (path_dir, (int *)0);
- io_check_dir (path_notes, (int *)0);
+ io_check_dir (path_dir, NULL);
+ io_check_dir (path_notes, NULL);
}
if (iflag)
{
- io_check_file (path_apts, (int *)0);
- io_check_file (path_todo, (int *)0);
+ io_check_file (path_apts, NULL);
+ io_check_file (path_todo, NULL);
/* Get default pager in case we need to show a log file. */
vars_init (conf);
io_load_app ();
@@ -938,8 +938,8 @@ parse_args (int argc, char **argv, struct conf *conf)
}
if (xflag)
{
- io_check_file (path_apts, (int *)0);
- io_check_file (path_todo, (int *)0);
+ io_check_file (path_apts, NULL);
+ io_check_file (path_todo, NULL);
io_load_app ();
io_load_todo ();
io_export_data (xfmt, conf);
@@ -948,22 +948,22 @@ parse_args (int argc, char **argv, struct conf *conf)
}
if (tflag)
{
- io_check_file (path_todo, (int *)0);
+ io_check_file (path_todo, NULL);
io_load_todo ();
todo_arg (tnum, Nflag, preg);
non_interactive = 1;
}
if (nflag)
{
- io_check_file (path_apts, (int *)0);
+ io_check_file (path_apts, NULL);
io_load_app ();
next_arg ();
non_interactive = 1;
}
if (dflag || rflag || sflag)
{
- io_check_file (path_apts, (int *)0);
- io_check_file (path_conf, (int *)0);
+ io_check_file (path_apts, NULL);
+ io_check_file (path_conf, NULL);
io_load_app ();
custom_load_conf (conf); /* To get output date format. */
if (dflag)
@@ -977,8 +977,8 @@ parse_args (int argc, char **argv, struct conf *conf)
{
struct date day;
- io_check_file (path_apts, (int *)0);
- io_check_file (path_conf, (int *)0);
+ io_check_file (path_apts, NULL);
+ io_check_file (path_conf, NULL);
vars_init (conf);
custom_load_conf (conf); /* To get output date format. */
io_load_app ();
diff --git a/src/calendar.c b/src/calendar.c
index 179946a..7d54d10 100644
--- a/src/calendar.c
+++ b/src/calendar.c
@@ -130,7 +130,7 @@ calendar_date_thread (void *arg)
calendar_update_panel (&win[CAL]);
}
- return (void *)0;
+ return NULL;
}
/* Launch the calendar date thread. */
diff --git a/src/custom.c b/src/custom.c
index 8b79888..5aae821 100644
--- a/src/custom.c
+++ b/src/custom.c
@@ -572,7 +572,7 @@ custom_layout_config (void)
" 'a' -> appointment panel\n\n"
" 't' -> todo panel\n\n");
- conf_win.p = (WINDOW *)0;
+ conf_win.p = NULL;
strncpy (label, _("layout configuration"), BUFSIZ);
custom_confwin_init (&conf_win, label);
cursor = mark = wins_layout () - 1;
diff --git a/src/keys.c b/src/keys.c
index e2af080..005595d 100644
--- a/src/keys.c
+++ b/src/keys.c
@@ -407,7 +407,7 @@ keys_action_nkey (enum key action, int keynum)
return key->str;
i++;
}
- return (char *)0;
+ return NULL;
}
char *
@@ -440,7 +440,7 @@ keys_format_label (char *key, int keylen)
int i;
if (keylen > BUFSIZ)
- return (char *)0;
+ return NULL;
bzero (fmtkey, sizeof (fmtkey));
if (len == 0)
diff --git a/src/mem.c b/src/mem.c
index 63aea73..01fb010 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -176,7 +176,7 @@ dbg_malloc (size_t size, const char *pos)
unsigned *buf;
if (size == 0)
- return (void *)0;
+ return NULL;
size = EXTRA_SPACE + (size + sizeof (unsigned) - 1) / sizeof (unsigned);
buf = xmalloc (size * sizeof (unsigned));
@@ -197,13 +197,13 @@ dbg_calloc (size_t nmemb, size_t size, const char *pos)
void *buf;
if (!nmemb || !size)
- return (void *)0;
+ return NULL;
EXIT_IF (nmemb > SIZE_MAX / size, _("overflow at %s"), pos);
size *= nmemb;
if ((buf = dbg_malloc (size, pos)) == NULL)
- return (void *)0;
+ return NULL;
bzero (buf, size);
@@ -216,16 +216,16 @@ dbg_realloc (void *ptr, size_t nmemb, size_t size, const char *pos)
unsigned *buf, old_size, new_size, cpy_size;
if (ptr == NULL)
- return (void *)0;
+ return NULL;
new_size = nmemb *size;
if (new_size == 0)
- return (void *)0;
+ return NULL;
EXIT_IF (nmemb > SIZE_MAX / size, _("overflow at %s"), pos);
if ((buf = dbg_malloc (new_size, pos)) == NULL)
- return (void *)0;
+ return NULL;
old_size = *((unsigned *)ptr - EXTRA_SPACE_START + BLK_SIZE);
cpy_size = (old_size > new_size) ? new_size : old_size;
@@ -243,11 +243,11 @@ dbg_strdup (const char *s, const char *pos)
char *buf;
if (s == NULL)
- return (char *)0;
+ return NULL;
size = strlen (s);
if ((buf = dbg_malloc (size + 1, pos)) == NULL)
- return (char *)0;
+ return NULL;
return strncpy (buf, s, size + 1);
}
diff --git a/src/notify.c b/src/notify.c
index 69700cf..eaf9805 100644
--- a/src/notify.c
+++ b/src/notify.c
@@ -225,7 +225,7 @@ notify_launch_cmd (void)
else if (pid == 0)
{
/* Child: launch user defined command */
- if (execlp (nbar.shell, nbar.shell, "-c", nbar.cmd, (char *)0) < 0)
+ if (execlp (nbar.shell, nbar.shell, "-c", nbar.cmd, NULL) < 0)
{
ERROR_MSG (_("error while launching command"));
_exit (1);
@@ -360,7 +360,7 @@ notify_main_thread (void *arg)
notify_check_next_app (0);
}
}
- pthread_exit ((void *) 0);
+ pthread_exit (NULL);
}
/* Fill the given structure with information about next appointment. */
@@ -377,7 +377,7 @@ notify_get_next (struct notify_app *a)
a->time = current_time + DAYINSEC;
a->got_app = 0;
a->state = 0;
- a->txt = (char *)0;
+ a->txt = NULL;
recur_apoint_check_next (a, current_time, get_today ());
apoint_check_next (a, current_time);
@@ -393,7 +393,7 @@ notify_get_next_bkgd (void)
{
struct notify_app a;
- a.txt = (char *)0;
+ a.txt = NULL;
if (!notify_get_next (&a))
return 0;
@@ -422,7 +422,7 @@ notify_app_txt (void)
if (notify_app.got_app)
return notify_app.txt;
else
- return (char *)0;
+ return NULL;
}
/* Look for the next appointment within the next 24 hours. */
@@ -434,7 +434,7 @@ notify_thread_app (void *arg)
int force = (arg ? 1 : 0);
if (!notify_get_next (&tmp_app))
- pthread_exit ((void *)0);
+ pthread_exit (NULL);
if (!tmp_app.got_app)
{
@@ -456,7 +456,7 @@ notify_thread_app (void *arg)
mem_free (tmp_app.txt);
notify_update_bar ();
- pthread_exit ((void *) 0);
+ pthread_exit (NULL);
}
/* Launch the thread notify_thread_app to look for next appointment. */
@@ -464,7 +464,7 @@ void
notify_check_next_app (int force)
{
pthread_t notify_t_app;
- void *arg = (force ? (void *)1 : (void *)0);
+ void *arg = (force ? (void *)1 : NULL);
pthread_create (&notify_t_app, &detached_thread_attr, notify_thread_app,
arg);
diff --git a/src/sigs.c b/src/sigs.c
index c9c90f0..a4f8140 100644
--- a/src/sigs.c
+++ b/src/sigs.c
@@ -83,7 +83,7 @@ sigs_set_hdlr (int sig, void (*handler)(int))
sigemptyset (&sa.sa_mask);
sa.sa_handler = handler;
sa.sa_flags = 0;
- if (sigaction (sig, &sa, (struct sigaction *)0) == -1)
+ if (sigaction (sig, &sa, NULL) == -1)
{
ERROR_MSG (_("Error setting signal #%d : %s\n"),
sig, strerror (errno));
diff --git a/src/utils.c b/src/utils.c
index ca2ebfe..d4390cd 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -419,7 +419,7 @@ item_in_popup (char *saved_a_start, char *saved_a_end, char *msg,
const int padl = winl - 2, padw = winw - margin_left;
pad = newpad (padl, padw);
- popup_win = popup (winl, winw, 1, 2, pop_title, (char *)0, 1);
+ popup_win = popup (winl, winw, 1, 2, pop_title, NULL, 1);
if (strncmp (pop_title, _("Appointment"), 11) == 0)
{
mvwprintw (popup_win, margin_top, margin_left, "- %s -> %s",
@@ -557,7 +557,7 @@ new_tempfile (const char *prefix, int trailing_len)
close (fd);
}
ERROR_MSG (_("temporary file \"%s\" could not be created"), fullname);
- return (char *)0;
+ return NULL;
}
fclose (file);