Return x truncated to the specified number of decimal places.

Synopsis

Declared in <bdldfp_decimalutil.h>

static
Decimal32
trunc(
    Decimal32 x,
    unsigned int precision);

Description

Return the specified x value truncated to the specified precision decimal places. Round towards zero, regardless of the current decimal floating point rounding mode. If precision of x is less than or equal the precision or x is positive zero, negative zero, NaN, or infinity then return x itself.

Examples: trunc(3.14159, 3) ==> 3.141

Return Value

x truncated to the specified number of decimal places

Parameters

Name

Description

x

value to truncate

precision

number of decimal places to retain

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