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Daniel Lemire 2020-10-19 21:10:20 -04:00 committed by GitHub
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@ -59,6 +59,19 @@ the type `fast_float::chars_format`. It is a bitset value: we check whether
to determine whether we allow the fixed point and scientific notation respectively. to determine whether we allow the fixed point and scientific notation respectively.
The default is `fast_float::chars_format::general` which allows both `fixed` and `scientific`. The default is `fast_float::chars_format::general` which allows both `fixed` and `scientific`.
## How fast is it?
We find that it is often twice as fast as the best available competitor, and many times faster than many standard-library implementations.
```
# parsing random integers in the range [0,1)
volume = 2.09808 MB
netlib : 294.33 MB/s (+/- 2.4 %) 14.03 Mint/s
strtod : 86.53 MB/s (+/- 1.4 %) 4.12 Mint/s
abseil : 521.66 MB/s (+/- 3.2 %) 24.86 Mint/s
fastfloat : 1061.86 MB/s (+/- 3.8 %) 50.61 Mint/s
```
## Using as a CMake dependency ## Using as a CMake dependency
This library is header-only by design. The CMake file provides the `fast_float` target This library is header-only by design. The CMake file provides the `fast_float` target