Helper class for ACE_Stats.
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#include <Stats.h>
Helper class for ACE_Stats.
Container struct for 64-bit signed quantity and its precision. It would be nicer to use a fixed-point class, but this is sufficient. Users typically don't need to use this class directly; see ACE_Stats below.
ACE_Stats_Value::ACE_Stats_Value |
( |
const u_int |
precision | ) |
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inline |
Constructor, which requires precision in terms of number of decimal digits. The more variation in the data, and the greater the data values, the smaller the precision must be to avoid overflow in the standard deviation calculation. 3 might be a good value, or maybe 4. 5 will probably be too large for non-trivial data sets.
ACE_Stats_Value::ACE_Stats_Value |
( |
void |
| ) |
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inlineprivate |
void ACE_Stats_Value::dump |
( |
void |
| ) |
const |
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inline |
void ACE_Stats_Value::fractional |
( |
const ACE_UINT32 |
value | ) |
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inline |
Set the fractional_ field.
ACE_UINT32 ACE_Stats_Value::fractional |
( |
void |
| ) |
const |
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inline |
Accessor for the fractional_ field.
ACE_UINT32 ACE_Stats_Value::fractional_field |
( |
void |
| ) |
const |
Calculates the maximum value of the fractional portion, given its precision.
u_int ACE_Stats_Value::precision |
( |
void |
| ) |
const |
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inline |
void ACE_Stats_Value::scaled_value |
( |
ACE_UINT64 & |
sv | ) |
const |
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inline |
Access the value as an unsigned 64 bit quantity. It scales the value up by {precision} decimal digits, so that no precision will be lost. It assumes that {whole_} is >= 0.
void ACE_Stats_Value::whole |
( |
const ACE_UINT32 |
value | ) |
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inline |
ACE_UINT32 ACE_Stats_Value::whole |
( |
void |
| ) |
const |
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inline |
Accessor for the whole_ field.
ACE_UINT32 ACE_Stats_Value::fractional_ |
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private |
The fractional portion of the value.
u_int ACE_Stats_Value::precision_ |
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private |
The number of decimal digits of precision represented by {fractional_}. Not declared const, so the only way to change it is via the assignment operator.
ACE_UINT32 ACE_Stats_Value::whole_ |
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private |
The integer portion of the value.
The documentation for this class was generated from the following files: