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path: root/contrib/libs/base64/plain64/dec_head.c
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int ret = 0; 
const uint8_t *c = (const uint8_t *)src; 
uint8_t *o = (uint8_t *)out; 
uint8_t q; 
 
// Use local temporaries to avoid cache thrashing: 
size_t outl = 0; 
struct plain64_base64_state st; 
st.eof = state->eof; 
st.bytes = state->bytes; 
st.carry = state->carry; 
 
// If we previously saw an EOF or an invalid character, bail out: 
if (st.eof) { 
	*outlen = 0; 
	return 0; 
} 
 
// Turn four 6-bit numbers into three bytes: 
// out[0] = 11111122 
// out[1] = 22223333 
// out[2] = 33444444 
 
// Duff's device again: 
switch (st.bytes) 
{ 
	for (;;) 
	{ 
	case 0: