Pretty printer for numbers with units.
Declared in <folly/String.h>
std::string
prettyPrint(
double val,
PrettyType type,
bool addSpace = true);A pretty-printer for numbers that appends suffixes of units of the given type. It prints 4 sig-figs of value with the most appropriate unit.
If `addSpace' is true, we put a space between the units suffix and the value.
Current types are: PRETTY_TIME - s, ms, us, ns, etc. PRETTY_TIME_HMS - h, m, s, ms, us, ns, etc. PRETTY_BYTES_METRIC - kB, MB, GB, etc (goes up by 10^3 = 1000 each time) PRETTY_BYTES - kB, MB, GB, etc (goes up by 2^10 = 1024 each time) PRETTY_BYTES_IEC - KiB, MiB, GiB, etc PRETTY_UNITS_METRIC - k, M, G, etc (goes up by 10^3 = 1000 each time) PRETTY_UNITS_BINARY - k, M, G, etc (goes up by 2^10 = 1024 each time) PRETTY_UNITS_BINARY_IEC - Ki, Mi, Gi, etc PRETTY_SI - full SI metric prefixes from yocto to Yotta http://en.wikipedia.org/wiki/Metric_prefix PRETTY_BITS_METRIC - kb, Mb, Gb, etc (goes up by 10^3 = 1000 each time) Useful for network bandwidth (e.g., 1 Gbps) PRETTY_BITS - alias for PRETTY_BITS_METRIC
The pretty-printed value.
| Name | Description |
|---|---|
| val | The value to format. |
| type | The unit family to use. |
| addSpace | Whether to insert a space between the value and its unit. |