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authorRobin Watts <robin.watts@artifex.com>2012-07-04 16:50:36 +0100
committerRobin Watts <robin.watts@artifex.com>2012-07-05 11:01:51 +0100
commitf23e5052e23a42057ef2c4025a38b9fc29ccd00c (patch)
tree8b43a48b380fb5a37eeb1910d1b91834bb6313f7 /apps
parent808e051272c2a0b1e32e252fd14cdaf65c452132 (diff)
downloadmupdf-f23e5052e23a42057ef2c4025a38b9fc29ccd00c.tar.xz
Avoid calling pdf_array_len (and friends) in a loop.
for(i = 0; i < pdf_array_len(x); i++) ... results in lots of calls to pdf_array_len. This is not what we want.
Diffstat (limited to 'apps')
-rw-r--r--apps/mupdfclean.c3
-rw-r--r--apps/mupdfextract.c3
-rw-r--r--apps/mupdfshow.c5
3 files changed, 7 insertions, 4 deletions
diff --git a/apps/mupdfclean.c b/apps/mupdfclean.c
index 8eb30efe..264d8edc 100644
--- a/apps/mupdfclean.c
+++ b/apps/mupdfclean.c
@@ -123,8 +123,9 @@ static void retainpages(int argc, char **argv)
pdf_obj *names = pdf_new_dict(ctx, 1);
pdf_obj *dests = pdf_new_dict(ctx, 1);
pdf_obj *names_list = pdf_new_array(ctx, 32);
+ int len = pdf_dict_len(olddests);
- for (i = 0; i < pdf_dict_len(olddests); i++)
+ for (i = 0; i < len; i++)
{
pdf_obj *key = pdf_dict_get_key(olddests, i);
pdf_obj *val = pdf_dict_get_val(olddests, i);
diff --git a/apps/mupdfextract.c b/apps/mupdfextract.c
index 8db6ceaf..95f27be9 100644
--- a/apps/mupdfextract.c
+++ b/apps/mupdfextract.c
@@ -178,7 +178,8 @@ int pdfextract_main(int argc, char **argv)
if (fz_optind == argc)
{
- for (o = 0; o < pdf_count_objects(doc); o++)
+ int len = pdf_count_objects(doc);
+ for (o = 0; o < len; o++)
showobject(o);
}
else
diff --git a/apps/mupdfshow.c b/apps/mupdfshow.c
index 252e7dc2..8e8425b0 100644
--- a/apps/mupdfshow.c
+++ b/apps/mupdfshow.c
@@ -142,9 +142,10 @@ static void showobject(int num, int gen)
static void showgrep(char *filename)
{
pdf_obj *obj;
- int i;
+ int i, len;
- for (i = 0; i < pdf_count_objects(doc); i++)
+ len = pdf_count_objects(doc);
+ for (i = 0; i < len; i++)
{
if (doc->table[i].type == 'n' || doc->table[i].type == 'o')
{