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Cosmetics: add do {} while 0 to macro.

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Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger 2012-01-21 22:48:15 +01:00
parent 0421b6dc7a
commit 420719e141
1 changed files with 13 additions and 12 deletions
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25
libavutil/base64.c
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@ -68,13 +68,14 @@ static const uint8_t map2[256] =
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
};
#define BASE64_DEC_STEP(i) \
#define BASE64_DEC_STEP(i) do { \
bits = map2[in[i]]; \
if (bits & 0x80) \
goto out; \
v = (v << 6) + bits; \
if (i & 3) \
*dst++ = v >> (6 - 2 * (i & 3)); \
} while(0)
int av_base64_decode(uint8_t *out, const char *in_str, int out_size)
{
@ -87,29 +88,29 @@ int av_base64_decode(uint8_t *out, const char *in_str, int out_size)
v = 0;
while (end - dst > 2) {
BASE64_DEC_STEP(0)
BASE64_DEC_STEP(1)
BASE64_DEC_STEP(2)
BASE64_DEC_STEP(3)
BASE64_DEC_STEP(0);
BASE64_DEC_STEP(1);
BASE64_DEC_STEP(2);
BASE64_DEC_STEP(3);
in += 4;
}
if (end - dst) {
BASE64_DEC_STEP(0)
BASE64_DEC_STEP(1)
BASE64_DEC_STEP(0);
BASE64_DEC_STEP(1);
if (end - dst) {
BASE64_DEC_STEP(2)
BASE64_DEC_STEP(2);
in++;
}
in += 2;
}
while (1) {
BASE64_DEC_STEP(0)
BASE64_DEC_STEP(0);
in++;
BASE64_DEC_STEP(0)
BASE64_DEC_STEP(0);
in++;
BASE64_DEC_STEP(0)
BASE64_DEC_STEP(0);
in++;
BASE64_DEC_STEP(0)
BASE64_DEC_STEP(0);
in++;
}