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binarybuffer: regression fix

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The "improve inline binarybuffer helpers" mis-handled bytes
with the high bit set; treat them as unsigned, not signed.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell 2009-11-16 14:50:07 -08:00
parent 66300d5966
commit b6e0f2e1c3
1 changed files with 4 additions and 2 deletions
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6
src/helper/binarybuffer.h
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@ -41,7 +41,8 @@
static inline void buf_set_u32(void *_buffer,
unsigned first, unsigned num, uint32_t value)
{
char *buffer = (char *)_buffer;
uint8_t *buffer = (uint8_t *)_buffer;
if ((num == 32) && (first == 0)) {
buffer[3] = (value >> 24) & 0xff;
buffer[2] = (value >> 16) & 0xff;
@ -69,7 +70,8 @@ static inline void buf_set_u32(void *_buffer,
static inline uint32_t buf_get_u32(const void *_buffer,
unsigned first, unsigned num)
{
char *buffer = (char *)_buffer;
uint8_t *buffer = (uint8_t *)_buffer;
if ((num == 32) && (first == 0)) {
return (((uint32_t)buffer[3]) << 24) |
(((uint32_t)buffer[2]) << 16) |