A class that defines a rounding precision based on a number of fraction places and optionally significant digits to be used when formatting numbers in NumberFormatter. More...
#include <numberformatter.h>
Public Member Functions | |
| Precision | withMinDigits (int32_t minSignificantDigits) const |
| Ensure that no less than this number of significant digits are retained when rounding according to fraction rules. More... | |
| Precision | withMaxDigits (int32_t maxSignificantDigits) const |
| Ensure that no more than this number of significant digits are retained when rounding according to fraction rules. More... | |
Friends | |
| class | Precision |
Additional Inherited Members | |
 Static Public Member Functions inherited from icu::number::Precision | |
| static Precision | unlimited () |
| Show all available digits to full precision. More... | |
| static FractionPrecision | integer () |
| Show numbers rounded if necessary to the nearest integer. More... | |
| static FractionPrecision | fixedFraction (int32_t minMaxFractionPlaces) |
| Show numbers rounded if necessary to a certain number of fraction places (numerals after the decimal separator). More... | |
| static FractionPrecision | minFraction (int32_t minFractionPlaces) |
| Always show at least a certain number of fraction places after the decimal separator, padding with zeros if necessary. More... | |
| static FractionPrecision | maxFraction (int32_t maxFractionPlaces) |
| Show numbers rounded if necessary to a certain number of fraction places (numerals after the decimal separator). More... | |
| static FractionPrecision | minMaxFraction (int32_t minFractionPlaces, int32_t maxFractionPlaces) |
| Show numbers rounded if necessary to a certain number of fraction places (numerals after the decimal separator); in addition, always show at least a certain number of places after the decimal separator, padding with zeros if necessary. More... | |
| static SignificantDigitsPrecision | fixedSignificantDigits (int32_t minMaxSignificantDigits) |
| Show numbers rounded if necessary to a certain number of significant digits or significant figures. More... | |
| static SignificantDigitsPrecision | minSignificantDigits (int32_t minSignificantDigits) |
| Always show at least a certain number of significant digits/figures, padding with zeros if necessary. More... | |
| static SignificantDigitsPrecision | maxSignificantDigits (int32_t maxSignificantDigits) |
| Show numbers rounded if necessary to a certain number of significant digits/figures. More... | |
| static SignificantDigitsPrecision | minMaxSignificantDigits (int32_t minSignificantDigits, int32_t maxSignificantDigits) |
| Show numbers rounded if necessary to a certain number of significant digits/figures; in addition, always show at least a certain number of significant digits, padding with zeros if necessary. More... | |
| static IncrementPrecision | increment (double roundingIncrement) |
| Show numbers rounded if necessary to the closest multiple of a certain rounding increment. More... | |
| static CurrencyPrecision | currency (UCurrencyUsage currencyUsage) |
| Show numbers rounded and padded according to the rules for the currency unit. More... | |
Detailed Description
A class that defines a rounding precision based on a number of fraction places and optionally significant digits to be used when formatting numbers in NumberFormatter.
To create a FractionPrecision, use one of the factory methods on Precision.
- Draft:
- This API may be changed in the future versions and was introduced in ICU 60
Definition at line 776 of file numberformatter.h.
Member Function Documentation
◆ withMaxDigits()
| Precision icu::number::FractionPrecision::withMaxDigits | ( | int32_t | maxSignificantDigits | ) | const |
Ensure that no more than this number of significant digits are retained when rounding according to fraction rules.
For example, with integer rounding, the number 123.4 becomes "123". However, with maximum figures set to 2, 123.4 becomes "120" instead.
This setting does not affect the number of trailing zeros. For example, with fixed fraction of 2, 123.4 would become "120.00".
- Parameters
-
maxSignificantDigits Round the number to no more than this number of significant figures.
- Returns
- A precision for chaining or passing to the NumberFormatter precision() setter.
- Draft:
- This API may be changed in the future versions and was introduced in ICU 60
◆ withMinDigits()
| Precision icu::number::FractionPrecision::withMinDigits | ( | int32_t | minSignificantDigits | ) | const |
Ensure that no less than this number of significant digits are retained when rounding according to fraction rules.
For example, with integer rounding, the number 3.141 becomes "3". However, with minimum figures set to 2, 3.141 becomes "3.1" instead.
This setting does not affect the number of trailing zeros. For example, 3.01 would print as "3", not "3.0".
- Parameters
-
minSignificantDigits The number of significant figures to guarantee.
- Returns
- A precision for chaining or passing to the NumberFormatter precision() setter.
- Draft:
- This API may be changed in the future versions and was introduced in ICU 60
The documentation for this class was generated from the following file:
