void testVarint(uint64_t val, std::initializer_list<uint8_t> bytes) {
size_t n = bytes.size();
ByteRange expected(&*bytes.begin(), n);
{
uint8_t buf[kMaxVarintLength64];
EXPECT_EQ(expected.size(), encodeVarint(val, buf));
EXPECT_TRUE(ByteRange(buf, expected.size()) == expected);
}
{
ByteRange r = expected;
uint64_t decoded = decodeVarint(r);
EXPECT_TRUE(r.empty());
EXPECT_EQ(val, decoded);
}
if (n < kMaxVarintLength64) {
// Try from a full buffer too, different code path
uint8_t buf[kMaxVarintLength64];
memcpy(buf, &*bytes.begin(), n);
uint8_t fills[] = {0, 0x7f, 0x80, 0xff};
for (uint8_t fill : fills) {
memset(buf + n, fill, kMaxVarintLength64 - n);
ByteRange r(buf, kMaxVarintLength64);
uint64_t decoded = decodeVarint(r);
EXPECT_EQ(val, decoded);
EXPECT_EQ(kMaxVarintLength64 - n, r.size());
}
}
}
void DeltaVarIntEncoder::AppendInt32(int value){
if (value > 0){
cout << "value : " << value << endl;
char * c;
int tmp = value - prev;
prev = tmp;
uint64_t v = (uint64_t) tmp;
uint8_t *output = (uint8_t*) malloc(sizeof(uint8_t)*8);
uint8_t *outputSizePtr = (uint8_t*) malloc(sizeof(uint8_t)*8);
encodeVarint(v,output,outputSizePtr);
for(int i = 0; i < *outputSizePtr; i ++)
cout << "output [" << i << "] =" << bitset<8>(output[i]) << endl;
c = (char *)output;
data_.append(c);
}else{
//rien wht should i do ? ignore or throw.
}
}