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Trimming out one eight-digit optimization.

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This commit is contained in:
Daniel Lemire 2022-11-15 11:38:06 -05:00
parent 662497742f
commit 6484c73696
2 changed files with 1 additions and 5 deletions
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2
CMakeLists.txt
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@ -1,6 +1,6 @@
cmake_minimum_required(VERSION 3.9) cmake_minimum_required(VERSION 3.9)
project(fast_float VERSION 3.4.0 LANGUAGES CXX) project(fast_float VERSION 3.6.0 LANGUAGES CXX)
option(FASTFLOAT_TEST "Enable tests" OFF) option(FASTFLOAT_TEST "Enable tests" OFF)
if(FASTFLOAT_TEST) if(FASTFLOAT_TEST)
enable_testing() enable_testing()

4
include/fast_float/ascii_number.h
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@ -106,10 +106,6 @@ parsed_number_string parse_number_string(const char *p, const char *pend, parse_
uint64_t i = 0; // an unsigned int avoids signed overflows (which are bad) uint64_t i = 0; // an unsigned int avoids signed overflows (which are bad)
while ((std::distance(p, pend) >= 8) && is_made_of_eight_digits_fast(p)) {
i = i * 100000000 + parse_eight_digits_unrolled(p); // in rare cases, this will overflow, but that's ok
p += 8;
}
while ((p != pend) && is_integer(*p)) { while ((p != pend) && is_integer(*p)) {
// a multiplication by 10 is cheaper than an arbitrary integer // a multiplication by 10 is cheaper than an arbitrary integer
// multiplication // multiplication