fix a compilation error

[openjpeg.git] / libopenjpeg / bio.c

diff --git a/libopenjpeg/bio.c b/libopenjpeg/bio.c
index 2a305a7925555de77b8950ee690f13cbd46a3f7d..9b6d694cdfd59e5380d9dc9ba9f30da6344d18e1 100644 (file)
--- a/libopenjpeg/bio.c
+++ b/libopenjpeg/bio.c
@@ -42,7 +42,7 @@ Write a bit
 @param bio BIO handle
 @param b Bit to write (0 or 1)
 */
-static void bio_putbit(opj_bio_t *bio, int b);
+static void bio_putbit(opj_bio_t *bio, unsigned int b);
 /**
 Read a bit
 @param bio BIO handle
@@ -78,7 +78,7 @@ static int bio_byteout(opj_bio_t *bio) {
        if (bio->bp >= bio->end) {
                return 1;
        }
-       *bio->bp++ = bio->buf >> 8;
+       *bio->bp++ = (unsigned char)(bio->buf >> 8);
        return 0;
 }
 
@@ -92,7 +92,7 @@ static int bio_bytein(opj_bio_t *bio) {
        return 0;
 }
 
-static void bio_putbit(opj_bio_t *bio, int b) {
+static void bio_putbit(opj_bio_t *bio, unsigned int b) {
        if (bio->ct == 0) {
                bio_byteout(bio);
        }
@@ -114,7 +114,7 @@ static int bio_getbit(opj_bio_t *bio) {
 ==========================================================
 */
 
-opj_bio_t* bio_create() {
+opj_bio_t* bio_create(void) {
        opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));
        return bio;
 }
@@ -125,7 +125,7 @@ void bio_destroy(opj_bio_t *bio) {
        }
 }
 
-int bio_numbytes(opj_bio_t *bio) {
+ptrdiff_t bio_numbytes(opj_bio_t *bio) {
        return (bio->bp - bio->start);
 }