diff --git a/.gitmodules b/.gitmodules index c6be7e3d..70d3584e 100644 --- a/.gitmodules +++ b/.gitmodules @@ -1,6 +1,3 @@ [submodule "scalarvssimd/rapidjson"] path = dependencies/rapidjson url = https://github.com/Tencent/rapidjson.git -[submodule "dependencies/double-conversion"] - path = dependencies/double-conversion - url = https://github.com/google/double-conversion.git diff --git a/Makefile b/Makefile index 72b976eb..daa9051a 100644 --- a/Makefile +++ b/Makefile @@ -6,24 +6,21 @@ .PHONY: clean cleandist -CXXFLAGS = -std=c++11 -g2 -O2 -march=native -Wall -Wextra -Wshadow -Iinclude -Ibenchmark/linux -Idependencies/double-conversion -Idependencies/rapidjson/include -Ldependencies/double-conversion/release -LIBFLAGS = -ldouble-conversion +CXXFLAGS = -std=c++11 -g2 -O2 -march=native -Wall -Wextra -Wshadow -Iinclude -Ibenchmark/linux -Idependencies/rapidjson/include EXECUTABLES=parse jsoncheck minifiercompetition parsingcompetition -DOUBLEEXECUTABLES=parsedouble jsoncheckdouble parsingcompetitiondouble -HEADERS=include/jsonparser/jsonparser.h include/jsonparser/common_defs.h include/jsonparser/jsonioutil.h benchmark/benchmark.h benchmark/linux/linux-perf-events.h include/jsonparser/simdjson_internal.h include/jsonparser/stage1_find_marks.h include/jsonparser/stage2_flatten.h include/jsonparser/stage34_unified.h +HEADERS= include/jsonparser/numberparsing.h include/jsonparser/jsonparser.h include/jsonparser/common_defs.h include/jsonparser/jsonioutil.h benchmark/benchmark.h benchmark/linux/linux-perf-events.h include/jsonparser/simdjson_internal.h include/jsonparser/stage1_find_marks.h include/jsonparser/stage2_flatten.h include/jsonparser/stage34_unified.h LIBFILES=src/jsonioutil.cpp src/jsonparser.cpp src/stage1_find_marks.cpp src/stage2_flatten.cpp src/stage34_unified.cpp MINIFIERHEADERS=include/jsonparser/jsonminifier.h include/jsonparser/simdprune_tables.h MINIFIERLIBFILES=src/jsonminifier.cpp EXTRA_EXECUTABLES=parsenocheesy parsenodep8 -LIBDOUBLE:=dependencies/double-conversion/release/libdouble-conversion.a RAPIDJSON_INCLUDE:=dependencies/rapidjson/include -LIBS=$(RAPIDJSON_INCLUDE) $(LIBDOUBLE) +LIBS=$(RAPIDJSON_INCLUDE) -all: $(LIBS) $(EXECUTABLES) $(DOUBLEEXECUTABLES) +all: $(LIBS) $(EXECUTABLES) test: jsoncheck ./jsoncheck @@ -31,9 +28,6 @@ test: jsoncheck $(RAPIDJSON_INCLUDE): git submodule update --init --recursive -$(LIBDOUBLE) : dependencies/double-conversion/README.md - cd dependencies/double-conversion/ && mkdir -p release && cd release && cmake .. && make - bench: benchmarks/bench.cpp $(RAPIDJSON_INCLUDE) $(HEADERS) $(CXX) -std=c++11 -O3 -o $@ benchmarks/bench.cpp -I$(RAPIDJSON_INCLUDE) -Iinclude -march=native -lm -Wall -Wextra -Wno-narrowing @@ -51,14 +45,6 @@ minifiercompetition: benchmark/minifiercompetition.cpp $(HEADERS) $(MINIFIERHEAD parsingcompetition: benchmark/parsingcompetition.cpp $(HEADERS) $(LIBFILES) $(CXX) $(CXXFLAGS) -o parsingcompetition $(LIBFILES) benchmark/parsingcompetition.cpp -I. $(LIBFLAGS) -parsedouble: benchmark/parse.cpp $(HEADERS) $(LIBFILES) - $(CXX) $(CXXFLAGS) -o parsedouble $(LIBFILES) benchmark/parse.cpp $(LIBFLAGS) -DDOUBLECONV - -jsoncheckdouble:tests/jsoncheck.cpp $(HEADERS) $(LIBFILES) - $(CXX) $(CXXFLAGS) -o jsoncheckdouble $(LIBFILES) tests/jsoncheck.cpp -I. $(LIBFLAGS) -DDOUBLECONV - -parsingcompetitiondouble: benchmark/parsingcompetition.cpp $(HEADERS) $(LIBFILES) - $(CXX) $(CXXFLAGS) -o parsingcompetitiondouble $(LIBFILES) benchmark/parsingcompetition.cpp -I. $(LIBFLAGS) -DDOUBLECONV parsehisto: benchmark/parse.cpp $(HEADERS) $(LIBFILES) @@ -85,14 +71,9 @@ parsenodep8: benchmark/parse.cpp $(HEADERS) $(LIBFILES) parsenodep10: benchmark/parse.cpp $(HEADERS) $(LIBFILES) $(CXX) $(CXXFLAGS) -o parsenodep12 benchmark/parse.cpp $(LIBFILES) -DNO_PDEP_PLEASE -DNO_PDEP_WIDTH=10 - parsenodep12: benchmark/parse.cpp $(HEADERS) $(LIBFILES) $(CXX) $(CXXFLAGS) -o parsenodep12 benchmark/parse.cpp $(LIBFILES) -DNO_PDEP_PLEASE -DNO_PDEP_WIDTH=12 - -dependencies/double-conversion/README.md: - git pull && git submodule init && git submodule update && git submodule status - clean: rm -f $(EXECUTABLES) $(EXTRA_EXECUTABLES) diff --git a/benchmark/parse.cpp b/benchmark/parse.cpp index 22dc0968..671648f1 100644 --- a/benchmark/parse.cpp +++ b/benchmark/parse.cpp @@ -1,5 +1,4 @@ #include "jsonparser/common_defs.h" -#include "double-conversion/double-conversion.h" #include "linux-perf-events.h" #include #include @@ -22,14 +21,6 @@ #include #include -/// Fixme: enable doube conv -// #define DOUBLECONV -#ifdef DOUBLECONV -#include "double-conversion/double-conversion.h" -#include "double-conversion/ieee.h" - -using namespace double_conversion; -#endif //#define DEBUG diff --git a/dependencies/double-conversion b/dependencies/double-conversion deleted file mode 160000 index 9a8e518b..00000000 --- a/dependencies/double-conversion +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 9a8e518bedcf171d99eb1c00eef4beb1ecc20a4b diff --git a/include/jsonparser/numberparsing.h b/include/jsonparser/numberparsing.h new file mode 100644 index 00000000..b1d57ba2 --- /dev/null +++ b/include/jsonparser/numberparsing.h @@ -0,0 +1,280 @@ + + +static const double power_of_ten[] = { + 1e-308, 1e-307, 1e-306, 1e-305, 1e-304, 1e-303, 1e-302, 1e-301, 1e-300, + 1e-299, 1e-298, 1e-297, 1e-296, 1e-295, 1e-294, 1e-293, 1e-292, 1e-291, + 1e-290, 1e-289, 1e-288, 1e-287, 1e-286, 1e-285, 1e-284, 1e-283, 1e-282, + 1e-281, 1e-280, 1e-279, 1e-278, 1e-277, 1e-276, 1e-275, 1e-274, 1e-273, + 1e-272, 1e-271, 1e-270, 1e-269, 1e-268, 1e-267, 1e-266, 1e-265, 1e-264, + 1e-263, 1e-262, 1e-261, 1e-260, 1e-259, 1e-258, 1e-257, 1e-256, 1e-255, + 1e-254, 1e-253, 1e-252, 1e-251, 1e-250, 1e-249, 1e-248, 1e-247, 1e-246, + 1e-245, 1e-244, 1e-243, 1e-242, 1e-241, 1e-240, 1e-239, 1e-238, 1e-237, + 1e-236, 1e-235, 1e-234, 1e-233, 1e-232, 1e-231, 1e-230, 1e-229, 1e-228, + 1e-227, 1e-226, 1e-225, 1e-224, 1e-223, 1e-222, 1e-221, 1e-220, 1e-219, + 1e-218, 1e-217, 1e-216, 1e-215, 1e-214, 1e-213, 1e-212, 1e-211, 1e-210, + 1e-209, 1e-208, 1e-207, 1e-206, 1e-205, 1e-204, 1e-203, 1e-202, 1e-201, + 1e-200, 1e-199, 1e-198, 1e-197, 1e-196, 1e-195, 1e-194, 1e-193, 1e-192, + 1e-191, 1e-190, 1e-189, 1e-188, 1e-187, 1e-186, 1e-185, 1e-184, 1e-183, + 1e-182, 1e-181, 1e-180, 1e-179, 1e-178, 1e-177, 1e-176, 1e-175, 1e-174, + 1e-173, 1e-172, 1e-171, 1e-170, 1e-169, 1e-168, 1e-167, 1e-166, 1e-165, + 1e-164, 1e-163, 1e-162, 1e-161, 1e-160, 1e-159, 1e-158, 1e-157, 1e-156, + 1e-155, 1e-154, 1e-153, 1e-152, 1e-151, 1e-150, 1e-149, 1e-148, 1e-147, + 1e-146, 1e-145, 1e-144, 1e-143, 1e-142, 1e-141, 1e-140, 1e-139, 1e-138, + 1e-137, 1e-136, 1e-135, 1e-134, 1e-133, 1e-132, 1e-131, 1e-130, 1e-129, + 1e-128, 1e-127, 1e-126, 1e-125, 1e-124, 1e-123, 1e-122, 1e-121, 1e-120, + 1e-119, 1e-118, 1e-117, 1e-116, 1e-115, 1e-114, 1e-113, 1e-112, 1e-111, + 1e-110, 1e-109, 1e-108, 1e-107, 1e-106, 1e-105, 1e-104, 1e-103, 1e-102, + 1e-101, 1e-100, 1e-99, 1e-98, 1e-97, 1e-96, 1e-95, 1e-94, 1e-93, + 1e-92, 1e-91, 1e-90, 1e-89, 1e-88, 1e-87, 1e-86, 1e-85, 1e-84, + 1e-83, 1e-82, 1e-81, 1e-80, 1e-79, 1e-78, 1e-77, 1e-76, 1e-75, + 1e-74, 1e-73, 1e-72, 1e-71, 1e-70, 1e-69, 1e-68, 1e-67, 1e-66, + 1e-65, 1e-64, 1e-63, 1e-62, 1e-61, 1e-60, 1e-59, 1e-58, 1e-57, + 1e-56, 1e-55, 1e-54, 1e-53, 1e-52, 1e-51, 1e-50, 1e-49, 1e-48, + 1e-47, 1e-46, 1e-45, 1e-44, 1e-43, 1e-42, 1e-41, 1e-40, 1e-39, + 1e-38, 1e-37, 1e-36, 1e-35, 1e-34, 1e-33, 1e-32, 1e-31, 1e-30, + 1e-29, 1e-28, 1e-27, 1e-26, 1e-25, 1e-24, 1e-23, 1e-22, 1e-21, + 1e-20, 1e-19, 1e-18, 1e-17, 1e-16, 1e-15, 1e-14, 1e-13, 1e-12, + 1e-11, 1e-10, 1e-9, 1e-8, 1e-7, 1e-6, 1e-5, 1e-4, 1e-3, + 1e-2, 1e-1, 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, + 1e7, 1e8, 1e9, 1e10, 1e11, 1e12, 1e13, 1e14, 1e15, + 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22, 1e23, 1e24, + 1e25, 1e26, 1e27, 1e28, 1e29, 1e30, 1e31, 1e32, 1e33, + 1e34, 1e35, 1e36, 1e37, 1e38, 1e39, 1e40, 1e41, 1e42, + 1e43, 1e44, 1e45, 1e46, 1e47, 1e48, 1e49, 1e50, 1e51, + 1e52, 1e53, 1e54, 1e55, 1e56, 1e57, 1e58, 1e59, 1e60, + 1e61, 1e62, 1e63, 1e64, 1e65, 1e66, 1e67, 1e68, 1e69, + 1e70, 1e71, 1e72, 1e73, 1e74, 1e75, 1e76, 1e77, 1e78, + 1e79, 1e80, 1e81, 1e82, 1e83, 1e84, 1e85, 1e86, 1e87, + 1e88, 1e89, 1e90, 1e91, 1e92, 1e93, 1e94, 1e95, 1e96, + 1e97, 1e98, 1e99, 1e100, 1e101, 1e102, 1e103, 1e104, 1e105, + 1e106, 1e107, 1e108, 1e109, 1e110, 1e111, 1e112, 1e113, 1e114, + 1e115, 1e116, 1e117, 1e118, 1e119, 1e120, 1e121, 1e122, 1e123, + 1e124, 1e125, 1e126, 1e127, 1e128, 1e129, 1e130, 1e131, 1e132, + 1e133, 1e134, 1e135, 1e136, 1e137, 1e138, 1e139, 1e140, 1e141, + 1e142, 1e143, 1e144, 1e145, 1e146, 1e147, 1e148, 1e149, 1e150, + 1e151, 1e152, 1e153, 1e154, 1e155, 1e156, 1e157, 1e158, 1e159, + 1e160, 1e161, 1e162, 1e163, 1e164, 1e165, 1e166, 1e167, 1e168, + 1e169, 1e170, 1e171, 1e172, 1e173, 1e174, 1e175, 1e176, 1e177, + 1e178, 1e179, 1e180, 1e181, 1e182, 1e183, 1e184, 1e185, 1e186, + 1e187, 1e188, 1e189, 1e190, 1e191, 1e192, 1e193, 1e194, 1e195, + 1e196, 1e197, 1e198, 1e199, 1e200, 1e201, 1e202, 1e203, 1e204, + 1e205, 1e206, 1e207, 1e208, 1e209, 1e210, 1e211, 1e212, 1e213, + 1e214, 1e215, 1e216, 1e217, 1e218, 1e219, 1e220, 1e221, 1e222, + 1e223, 1e224, 1e225, 1e226, 1e227, 1e228, 1e229, 1e230, 1e231, + 1e232, 1e233, 1e234, 1e235, 1e236, 1e237, 1e238, 1e239, 1e240, + 1e241, 1e242, 1e243, 1e244, 1e245, 1e246, 1e247, 1e248, 1e249, + 1e250, 1e251, 1e252, 1e253, 1e254, 1e255, 1e256, 1e257, 1e258, + 1e259, 1e260, 1e261, 1e262, 1e263, 1e264, 1e265, 1e266, 1e267, + 1e268, 1e269, 1e270, 1e271, 1e272, 1e273, 1e274, 1e275, 1e276, + 1e277, 1e278, 1e279, 1e280, 1e281, 1e282, 1e283, 1e284, 1e285, + 1e286, 1e287, 1e288, 1e289, 1e290, 1e291, 1e292, 1e293, 1e294, + 1e295, 1e296, 1e297, 1e298, 1e299, 1e300, 1e301, 1e302, 1e303, + 1e304, 1e305, 1e306, 1e307, 1e308}; + +really_inline bool parse_number(const u8 *buf, UNUSED size_t len, + ParsedJson &pj, u32 depth, u32 offset, + bool found_zero, bool found_minus) { + if (found_minus) { + offset++; + found_zero = (buf[offset] == '0'); + } + const u8 *src = &buf[offset]; + // this can read past the string content, so we need to have overallocated + m256 v = _mm256_loadu_si256((const m256 *)(src)); + u64 error_sump = 0; + + // categories to extract + // Digits: + // 0 (0x30) - bucket 0 + // 1-9 (never any distinction except if we didn't get the free kick at 0 due + // to the leading minus) (0x31-0x39) - bucket 1 + // . (0x2e) - bucket 2 + // E or e - no distinction (0x45/0x65) - bucket 3 + // + (0x2b) - bucket 4 + // - (0x2d) - bucket 4 + // Terminators + // Whitespace: 0x20, 0x09, 0x0a, 0x0d - bucket 5+6 + // Comma and the closes: 0x2c is comma, } is 0x5d, ] is 0x7d - bucket 5+7 + // Geoff suggests that this is not ideal, but it seems to work well enough. + const m256 low_nibble_mask = _mm256_setr_epi8( + // 0 1 2 3 4 5 6 7 8 9 a b c d e f + 33, 2, 2, 2, 2, 10, 2, 2, 2, 66, 64, 16, 32, 0xd0, 4, 0, 33, 2, 2, 2, 2, + 10, 2, 2, 2, 66, 64, 16, 32, 0xd0, 4, 0); + const m256 high_nibble_mask = _mm256_setr_epi8( + // 0 1 2 3 4 5 6 7 8 9 a b c d e f + 64, 0, 52, 3, 8, -128, 8, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 52, 3, 8, + -128, 8, 0x80, 0, 0, 0, 0, 0, 0, 0, 0); + + m256 tmp = _mm256_and_si256( + _mm256_shuffle_epi8(low_nibble_mask, v), + _mm256_shuffle_epi8( + high_nibble_mask, + _mm256_and_si256(_mm256_srli_epi32(v, 4), _mm256_set1_epi8(0x7f)))); + + m256 enders_mask = _mm256_set1_epi8(0xe0); + m256 tmp_enders = _mm256_cmpeq_epi8(_mm256_and_si256(tmp, enders_mask), + _mm256_set1_epi8(0)); + u32 enders = ~(u32)_mm256_movemask_epi8(tmp_enders); + if (enders == 0) { + // if there are no ender characters then we are using more than 31 bytes for + // the number, and we can safely assume that it is a floating-point numbers + // hopefully, this is uncommon and we can fall back on the standard API + char *end; + double result = strtod((const char *)src, &end); + if ((errno != 0) || (end == (const char *)src) || + is_not_structural_or_whitespace(*end)) { + return false; + } + if (found_minus) { + result = -result; + } + pj.write_tape_double(depth, result); + return true; + } + /////////// + // From this point forward, we know that the + // the number fits in 31 bytes. + /////////// + + // number_mask captures everything before the first ender + u32 number_mask = ~enders & (enders - 1); + // let us identify just the digits 0-9 + m256 d_mask = _mm256_set1_epi8(0x03); + m256 tmp_d = + _mm256_cmpeq_epi8(_mm256_and_si256(tmp, d_mask), _mm256_set1_epi8(0)); + u32 digit_characters = ~(u32)_mm256_movemask_epi8(tmp_d); + digit_characters &= number_mask; + // integers are probably common, so let us do them right away + if (number_mask == digit_characters) { + int stringlength = __builtin_ctz(~digit_characters); + const char *end = (const char *)src + stringlength; + u64 result = naivestrtoll((const char *)src, end); + if (found_minus) { + result = -result; + } + pj.write_tape_s64(depth, result); + // it is valid as long as it does not start with zero! + // or just 0, whether -0 is allowed is debatable? + return ! ((found_zero) && (stringlength > 1)); + } + + m256 n_mask = _mm256_set1_epi8(0x1f); + m256 tmp_n = + _mm256_cmpeq_epi8(_mm256_and_si256(tmp, n_mask), _mm256_set1_epi8(0)); + u32 number_characters = ~(u32)_mm256_movemask_epi8(tmp_n); + + // put something into our error sump if we have something + // before our ending characters that isn't a valid character + // for the inside of our JSON + number_characters &= number_mask; + error_sump |= number_characters ^ number_mask; + + // we can now assume that all of the content made of relevant characters + + m256 p_mask = _mm256_set1_epi8(0x04); + m256 tmp_p = + _mm256_cmpeq_epi8(_mm256_and_si256(tmp, p_mask), _mm256_set1_epi8(0)); + u32 decimal_characters = ~(u32)_mm256_movemask_epi8(tmp_p); + decimal_characters &= number_mask; + + // the decimal character must be unique or absent + // we might have 1e10, 0.1, ... + error_sump |= ((decimal_characters) & (decimal_characters - 1)); + + // detect the exponential characters + m256 e_mask = _mm256_set1_epi8(0x08); + m256 tmp_e = + _mm256_cmpeq_epi8(_mm256_and_si256(tmp, e_mask), _mm256_set1_epi8(0)); + u32 exponent_characters = ~(u32)_mm256_movemask_epi8(tmp_e); + exponent_characters &= number_mask; + + // the exponent character must be unique or absent + error_sump |= ((exponent_characters) & (exponent_characters - 1)); + + // if they exist the exponent character must follow the decimal_characters + // character + error_sump |= + ((exponent_characters - 1) & decimal_characters) ^ decimal_characters; + + // if the zero character is in first position, it + // needs to be followed by the decimal + error_sump |= found_zero ^ ((decimal_characters >> 1) & found_zero); + + // let us detect the sign characters + m256 s_mask = _mm256_set1_epi8(0x10); + m256 tmp_s = + _mm256_cmpeq_epi8(_mm256_and_si256(tmp, s_mask), _mm256_set1_epi8(0)); + + u32 sign_characters = ~(u32)_mm256_movemask_epi8(tmp_s); + sign_characters &= number_mask; + + // any sign character must be followed by a digit + error_sump |= (~(digit_characters >> 1)) & sign_characters; + + // there is at most one sign character + error_sump |= ((sign_characters) & (sign_characters - 1)); + + // the exponent must be followed by either a sign character or a digit + error_sump |= + (~((digit_characters | sign_characters) >> 1)) & exponent_characters; + + + if(error_sump != 0) { + return false; + } + // so we have a nice float-point at this time + + const char *p = (const char *)src; + // we start with digits followed by "." or "e" or "E". + // scan them + int integerpartlength = + __builtin_ctz(exponent_characters | decimal_characters); + const char *endjustinteger = p + integerpartlength; + uint64_t integerpart = *p - '0'; // there must be at least one digit + p++; + for (; p != endjustinteger; p++) { + integerpart = (integerpart * 10) + (*p - '0'); + } + double result = integerpart; + if (decimal_characters != 0) { + p++; + int mantissalength = __builtin_ctz(exponent_characters | enders); + const char *endmantissa = (const char *)src + mantissalength; + int fracdigitcount = endmantissa - p; // could be zero! + uint64_t fractionalpart = 0; // there could be nothing + for (; p != endmantissa; p++) { + fractionalpart = (fractionalpart * 10) + (*p - '0'); + } + result += fractionalpart * power_of_ten[308 - fracdigitcount]; + } + if (exponent_characters != 0) { + p++; // skip exponent + int sign = +1; + if (p[0] == '+') + p++; + if (p[0] == '-') { + p++; + sign = -1; + } + int stringlength = __builtin_ctz(~number_mask); + const char *endnumber = (const char *)src + stringlength; + + uint64_t exppart = *p - '0'; + p++; + for (; p != endnumber; p++) { + exppart = (exppart * 10) + (*p - '0'); + } + if (exppart > 308) { + return false; + } + // betting that these branches are highly predictible + // could use arithmetic instead + if (sign == 1) { + result = result * power_of_ten[308 + exppart]; + } else { + result = result * power_of_ten[308 - exppart]; + } + } + pj.write_tape_double(depth, result); + return true; +} diff --git a/src/stage34_unified.cpp b/src/stage34_unified.cpp index 2b34fb37..dc80930f 100644 --- a/src/stage34_unified.cpp +++ b/src/stage34_unified.cpp @@ -261,14 +261,6 @@ really_inline bool parse_string(const u8 *buf, UNUSED size_t len, return true; } -#ifdef DOUBLECONV -#include "double-conversion/double-conversion.h" -#include "double-conversion/ieee.h" -using namespace double_conversion; -static StringToDoubleConverter - converter(StringToDoubleConverter::ALLOW_TRAILING_JUNK, 2000000.0, - Double::NaN(), NULL, NULL); -#endif // does not validation whatsoever, assumes that all digit @@ -283,6 +275,12 @@ inline u64 naivestrtoll(const char *p, const char *end) { } return x; } + +#define NEWPARSENUMBER +#ifdef NEWPARSENUMBER +#include "jsonparser/numberparsing.h" +#else + // put a parsed version of number (either as a double or a signed long) into the // number buffer, put a 'tag' indicating which type and where it is back onto // the tape at that location return false if we can't parse the number which @@ -298,23 +296,6 @@ really_inline bool parse_number(const u8 *buf, UNUSED size_t len, ParsedJson &pj, u32 depth, u32 offset, UNUSED bool found_zero, bool found_minus) { -//////////////// -// This is temporary... but it illustrates how one could use Google's double -// conv. -/// -#ifdef DOUBLECONV - // Maybe surprisingly, StringToDouble does not parse according to the JSON - // spec (e.g., it will happily parse 012 as 12). - int processed_characters_count; - double result_double_conv = converter.StringToDouble( - (const char *)(buf + offset), 10, &processed_characters_count); - pj.write_tape_double(depth, result_double_conv); - - return result_double_conv == result_double_conv; -#endif - //////////////// - // end of double conv temporary stuff. - //////////////// if (found_minus) { offset++; } @@ -537,7 +518,7 @@ really_inline bool parse_number(const u8 *buf, UNUSED size_t len, return false; return true; } - +#endif // end copypasta