Return the nearest integral value not greater in magnitude than x.

Synopsis

Declared in <bdldfp_decimalutil.h>

static
Decimal32
trunc(Decimal32 x);

Description

Return the nearest integral value that is not greater in absolute value than the specified x.

Special value handling: * if x is quiet NaN, quiet NaN is returned. * If x is signaling NaN, quiet NaN is returned and the value of the macro EDOM is stored into errno. * if x is +/‐infinity or +/‐0, it is returned unmodified.

Examples: trunc(0.5) ==> 0.0; trunc(‐0.5) ==> 0.0

Return Value

nearest integral value not greater in magnitude than x

Parameters

Name

Description

x

value to truncate toward zero

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