#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_H #define SIMDJSON_FALLBACK_NUMBERPARSING_H #ifdef JSON_TEST_NUMBERS // for unit testing void found_invalid_number(const uint8_t *buf); void found_integer(int64_t result, const uint8_t *buf); void found_unsigned_integer(uint64_t result, const uint8_t *buf); void found_float(double result, const uint8_t *buf); #endif namespace simdjson { namespace SIMDJSON_IMPLEMENTATION { namespace { // credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ static simdjson_really_inline uint32_t parse_eight_digits_unrolled(const char *chars) { uint64_t val; memcpy(&val, chars, sizeof(uint64_t)); val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); } static simdjson_really_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { return parse_eight_digits_unrolled(reinterpret_cast(chars)); } } // unnamed namespace } // namespace SIMDJSON_IMPLEMENTATION } // namespace simdjson #define SIMDJSON_SWAR_NUMBER_PARSING 1 #include "simdjson/generic/numberparsing.h" #endif // SIMDJSON_FALLBACK_NUMBERPARSING_H