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authorZachary T Welch <zw@superlucidity.net>2009-11-14 08:19:24 -0800
committerZachary T Welch <zw@superlucidity.net>2009-11-16 00:46:33 -0800
commit5a43bd2e185bf469561a8370dcd543cc4813c33f (patch)
treee2167a12e6507090a3ef6c70a874fd7c86a31586 /src
parent82fc2f9628e0f1dbd9010e0146ff63832e4a77a1 (diff)
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binarybuffer: move variables to point of first use
Reduce some noise from subsequent patches.
Diffstat (limited to 'src')
-rw-r--r--src/helper/binarybuffer.c31
-rw-r--r--src/helper/binarybuffer.h6
2 files changed, 9 insertions, 28 deletions
diff --git a/src/helper/binarybuffer.c b/src/helper/binarybuffer.c
index d813ecf5..95e084ef 100644
--- a/src/helper/binarybuffer.c
+++ b/src/helper/binarybuffer.c
@@ -50,13 +50,10 @@ const unsigned char bit_reverse_table256[] =
uint8_t* buf_cpy(const uint8_t *from, uint8_t *to, int size)
{
- unsigned int num_bytes = CEIL(size, 8);
- unsigned int i;
-
if (from == NULL)
return NULL;
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(size, 8); i < num_bytes; i++)
to[i] = from[i];
/* mask out bits that don't belong to the buffer */
@@ -70,13 +67,10 @@ uint8_t* buf_cpy(const uint8_t *from, uint8_t *to, int size)
int buf_cmp(const uint8_t *buf1, const uint8_t *buf2, int size)
{
- int num_bytes = CEIL(size, 8);
- int i;
-
if (!buf1 || !buf2)
return 1;
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(size, 8); i < num_bytes; i++)
{
/* last byte */
/* mask out bits that don't really belong to the buffer if size isn't a multiple of 8 bits */
@@ -97,10 +91,7 @@ int buf_cmp(const uint8_t *buf1, const uint8_t *buf2, int size)
int buf_cmp_mask(const uint8_t *buf1, const uint8_t *buf2, const uint8_t *mask, int size)
{
- int num_bytes = CEIL(size, 8);
- int i;
-
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(size, 8); i < num_bytes; i++)
{
/* last byte */
/* mask out bits that don't really belong to the buffer if size isn't a multiple of 8 bits */
@@ -122,10 +113,7 @@ int buf_cmp_mask(const uint8_t *buf1, const uint8_t *buf2, const uint8_t *mask,
uint8_t* buf_set_ones(uint8_t *buf, int count)
{
- int num_bytes = CEIL(count, 8);
- int i;
-
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(count, 8); i < num_bytes; i++)
{
if (count >= 8)
buf[i] = 0xff;
@@ -141,9 +129,8 @@ uint8_t* buf_set_ones(uint8_t *buf, int count)
uint8_t* buf_set_buf(const uint8_t *src, int src_start, uint8_t *dst, int dst_start, int len)
{
int src_idx = src_start, dst_idx = dst_start;
- int i;
- for (i = 0; i < len; i++)
+ for (int i = 0; i < len; i++)
{
if (((src[src_idx / 8] >> (src_idx % 8)) & 1) == 1)
dst[dst_idx / 8] |= 1 << (dst_idx % 8);
@@ -158,9 +145,7 @@ uint8_t* buf_set_buf(const uint8_t *src, int src_start, uint8_t *dst, int dst_st
uint32_t flip_u32(uint32_t value, unsigned int num)
{
- uint32_t c;
-
- c = (bit_reverse_table256[value & 0xff] << 24) |
+ uint32_t c = (bit_reverse_table256[value & 0xff] << 24) |
(bit_reverse_table256[(value >> 8) & 0xff] << 16) |
(bit_reverse_table256[(value >> 16) & 0xff] << 8) |
(bit_reverse_table256[(value >> 24) & 0xff]);
@@ -173,12 +158,10 @@ uint32_t flip_u32(uint32_t value, unsigned int num)
int ceil_f_to_u32(float x)
{
- uint32_t y;
-
if (x < 0) /* return zero for negative numbers */
return 0;
- y = x; /* cut off fraction */
+ uint32_t y = x; /* cut off fraction */
if ((x - y) > 0.0) /* if there was a fractional part, increase by one */
y++;
diff --git a/src/helper/binarybuffer.h b/src/helper/binarybuffer.h
index 60077b31..400cbbe6 100644
--- a/src/helper/binarybuffer.h
+++ b/src/helper/binarybuffer.h
@@ -39,8 +39,7 @@ static inline void buf_set_u32(uint8_t* buffer,
buffer[1] = (value >> 8) & 0xff;
buffer[0] = (value >> 0) & 0xff;
} else {
- unsigned int i;
- for (i = first; i < first + num; i++)
+ for (unsigned i = first; i < first + num; i++)
{
if (((value >> (i - first)) & 1) == 1)
buffer[i / 8] |= 1 << (i % 8);
@@ -59,8 +58,7 @@ static inline uint32_t buf_get_u32(const uint8_t* buffer,
(((uint32_t)buffer[0]) << 0);
} else {
uint32_t result = 0;
- unsigned int i;
- for (i = first; i < first + num; i++)
+ for (unsigned i = first; i < first + num; i++)
{
if (((buffer[i / 8] >> (i % 8)) & 1) == 1)
result |= 1 << (i - first);