BloombergLP::bdldfp::DecimalUtil::log10

Return the common (base-10) logarithm of the specified x.

Synopsis

Declared in <bdldfp_decimalutil.h>

static
Decimal32
log10(Decimal32 x);

Description

Special value handling: * If x is +/-0, -infinity is returned and the value of the macro ERANGE is stored into errno. * If x is 1, +0 is returned. * If x is negative, quiet NaN is returned and the value of the macro EDOM is stored into errno. * If x is +infinity, +infinity is returned. * If x is quiet NaN, quiet NaN is returned. * If x is signaling NaN, NaN is returned and the value of the macro EDOM is stored into errno.

Return Value

common (base-10) logarithm of x

Parameters

NameDescription
xvalue whose base-10 logarithm is returned