Stylistic changes when testing pointer values for NULL.

Also: use 'cannot' instead of 'failed to' in error messages.

8 files changed, 14 insertions, 14 deletions

diff --git a/apps/pdfclean.c b/apps/pdfclean.c
index 58453cfb..56d78082 100644
--- a/apps/pdfclean.c
+++ b/apps/pdfclean.c
@@ -785,7 +785,7 @@ int main(int argc, char **argv)
 	/* Do not renumber objects if encryption is in use, as the object
 	 * numbers are baked into the streams/strings, and we can't currently
 	 * cope with moving them. See bug 692627. */
-	if (dogarbage >= 2 && xref->crypt == NULL)
+	if (dogarbage >= 2 && !xref->crypt)
 		renumberobjs();
 
 	writepdf();
diff --git a/apps/pdfdraw.c b/apps/pdfdraw.c
index ff9f72a3..861d2b3f 100644
--- a/apps/pdfdraw.c
+++ b/apps/pdfdraw.c
@@ -363,9 +363,9 @@ int main(int argc, char **argv)
 		fz_accelerate();
 
 	ctx = fz_new_context(&fz_alloc_default);
-	if (ctx == NULL)
+	if (!ctx)
 	{
-		fprintf(stderr, "cannot init context\n");
+		fprintf(stderr, "cannot initialise context\n");
 		exit(1);
 	}
 
diff --git a/apps/pdfextract.c b/apps/pdfextract.c
index cb03d745..c32a25c5 100644
--- a/apps/pdfextract.c
+++ b/apps/pdfextract.c
@@ -127,7 +127,7 @@ static void savefont(fz_obj *dict, int num)
 	printf("extracting font %s\n", name);
 
 	f = fopen(name, "wb");
-	if (f == NULL)
+	if (!f)
 		fz_throw(ctx, "Error creating font file");
 
 	n = fwrite(buf->data, 1, buf->len, f);
diff --git a/apps/pdfinfo.c b/apps/pdfinfo.c
index 171317c9..bfa5f3b1 100644
--- a/apps/pdfinfo.c
+++ b/apps/pdfinfo.c
@@ -976,7 +976,7 @@ int main(int argc, char **argv)
 	ctx = fz_new_context(&fz_alloc_default);
 	if (!ctx)
 	{
-		fprintf(stderr, "cannot initialise context");
+		fprintf(stderr, "cannot initialise context\n");
 		exit(1);
 	}
 
diff --git a/apps/win_main.c b/apps/win_main.c
index a64d1b08..99214904 100644
--- a/apps/win_main.c
+++ b/apps/win_main.c
@@ -340,7 +340,7 @@ void winopen()
 
 	/* Init DIB info for buffer */
 	dibinf = malloc(sizeof(BITMAPINFO) + 12);
-	assert(dibinf != NULL);
+	assert(dibinf);
 	dibinf->bmiHeader.biSize = sizeof(dibinf->bmiHeader);
 	dibinf->bmiHeader.biPlanes = 1;
 	dibinf->bmiHeader.biBitCount = 32;
@@ -832,9 +832,9 @@ WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShow
 	fz_accelerate();
 
 	ctx = fz_new_context(&fz_alloc_default);
-	if (ctx == NULL)
+	if (!ctx)
 	{
-		fprintf(stderr, "cannot init context");
+		fprintf(stderr, "cannot initialise context\n");
 		exit(1);
 	}
 	pdfapp_init(ctx, &gapp);
diff --git a/apps/x11_image.c b/apps/x11_image.c
index 9383c545..35b32c7e 100644
--- a/apps/x11_image.c
+++ b/apps/x11_image.c
@@ -285,7 +285,7 @@ create_pool(void)
 		info.pool[i] = createximage(info.display,
 			info.visual.visual, &info.shminfo[i], info.visual.depth,
 			WIDTH, HEIGHT);
-		if (info.pool[i] == NULL) {
+		if (!info.pool[i]) {
 			return 0;
 		}
 	}
diff --git a/apps/x11_main.c b/apps/x11_main.c
index b875bc6a..23649a57 100644
--- a/apps/x11_main.c
+++ b/apps/x11_main.c
@@ -337,7 +337,7 @@ static void winblit(pdfapp_t *app)
 	{
 		int i = gapp.image->w*gapp.image->h;
 		unsigned char *color = malloc(i*4);
-		if (color != NULL)
+		if (color)
 		{
 			unsigned char *s = gapp.image->samples;
 			unsigned char *d = color;
@@ -588,9 +588,9 @@ int main(int argc, char **argv)
 	struct timeval *timeout;
 
 	ctx = fz_new_context(&fz_alloc_default);
-	if (ctx == NULL)
+	if (!ctx)
 	{
-		fprintf(stderr, "failed to initialise context");
+		fprintf(stderr, "cannot initialise context\n");
 		exit(1);
 	}
 
diff --git a/apps/xpsdraw.c b/apps/xpsdraw.c
index 8b15ef3e..a7223574 100644
--- a/apps/xpsdraw.c
+++ b/apps/xpsdraw.c
@@ -315,9 +315,9 @@ int main(int argc, char **argv)
 		fz_accelerate();
 
 	ctx = fz_new_context(&fz_alloc_default);
-	if (ctx == NULL)
+	if (!ctx)
 	{
-		fprintf(stderr, "failed to initialise context");
+		fprintf(stderr, "cannot initialise context\n");
 		exit(1);
 	}