Пример #1
0
static void
test_bigend_u16(TestBatch *batch) {
    size_t    count     = 32;
    uint64_t *ints      = TestUtils_random_u64s(NULL, count, 0, U16_MAX + 1);
    size_t    amount    = (count + 1) * sizeof(uint16_t);
    char     *allocated = (char*)CALLOCATE(amount, sizeof(char));
    char     *encoded   = allocated + 1; // Intentionally misaligned.
    char     *target    = encoded;

    for (size_t i = 0; i < count; i++) {
        NumUtil_encode_bigend_u16((uint16_t)ints[i], &target);
        target += sizeof(uint16_t);
    }
    target = encoded;
    for (size_t i = 0; i < count; i++) {
        uint16_t got = NumUtil_decode_bigend_u16(target);
        TEST_INT_EQ(batch, got, (long)ints[i], "bigend u16");
        target += sizeof(uint16_t);
    }

    target = encoded;
    NumUtil_encode_bigend_u16(1, &target);
    TEST_INT_EQ(batch, encoded[0], 0, "Truly big-endian u16");
    TEST_INT_EQ(batch, encoded[1], 1, "Truly big-endian u16");

    FREEMEM(allocated);
    FREEMEM(ints);
}
static void
S_write_ord(void *ords, int32_t width, int32_t doc_id, int32_t ord) {
    switch (width) {
        case 1:
            if (ord) { NumUtil_u1set(ords, doc_id); }
            else     { NumUtil_u1clear(ords, doc_id); }
            break;
        case 2:
            NumUtil_u2set(ords, doc_id, ord);
            break;
        case 4:
            NumUtil_u4set(ords, doc_id, ord);
            break;
        case 8: {
                uint8_t *ints = (uint8_t*)ords;
                ints[doc_id] = ord;
            }
            break;
        case 16: {
                uint8_t *bytes = (uint8_t*)ords;
                bytes += doc_id * sizeof(uint16_t);
                NumUtil_encode_bigend_u16(ord, &bytes);
            }
            break;
        case 32: {
                uint8_t *bytes = (uint8_t*)ords;
                bytes += doc_id * sizeof(uint32_t);
                NumUtil_encode_bigend_u32(ord, &bytes);
            }
            break;
        default:
            THROW(ERR, "Invalid width: %i32", width);
    }
}