Fast and exact implementation of the C++ from_chars functions for number types: 4x to 10x faster than strtod, part of GCC 12, Chromium, Redis and WebKit/Safari
Hi in many applications I have I cannot use double / float but use a fixed-point integer representation, for instance storing the number in a int64_t with the stored value is 1 billion times the original value allowing for 9 digits of decimal.
Example:
int64_t val;
fast_fixed_point("42.123456789", val, 9)
then val would be set to 42123456789
I think it should be pretty easy to adapt the current code to support this use case.
lemire
commented
2 years ago
Hi in many applications I have I cannot use double / float but use a fixed-point integer representation, for instance storing the number in a int64_t with the stored value is 1 billion times the original value allowing for 9 digits of decimal. Example: int64_t val; fast_fixed_point("42.123456789", val, 9) then val would be set to 42123456789
I think it should be pretty easy to adapt the current code to support this use case.