5#ifndef DUNE_COMMON_FLOAT_CMP_HH
6#define DUNE_COMMON_FLOAT_CMP_HH
129 template<
class T>
struct EpsilonType;
137 template<
class T, CmpStyle style = defaultCmpStyle>
157 bool eq(
const T &first,
170 bool ne(
const T &first,
186 bool gt(
const T &first,
202 bool lt(
const T &first,
218 bool ge(
const T &first,
234 bool le(
const T &first,
bool ne(const T &first, const T &second, typename EpsilonType< T >::Type epsilon)
test for inequality using epsilon
Definition float_cmp.cc:151
CmpStyle
Definition float_cmp.hh:104
bool eq(const T &first, const T &second, typename EpsilonType< T >::Type epsilon)
test for equality using epsilon
Definition float_cmp.cc:144
I round(const T &val, typename EpsilonType< T >::Type epsilon)
round using epsilon
Definition float_cmp.cc:311
I trunc(const T &val, typename EpsilonType< T >::Type epsilon)
truncate using epsilon
Definition float_cmp.cc:407
RoundingStyle
Definition float_cmp.hh:116
bool lt(const T &first, const T &second, typename EpsilonType< T >::Type epsilon)
test if first lesser than second
Definition float_cmp.cc:165
bool gt(const T &first, const T &second, typename EpsilonType< T >::Type epsilon)
test if first greater than second
Definition float_cmp.cc:158
bool ge(const T &first, const T &second, typename EpsilonType< T >::Type epsilon)
test if first greater or equal second
Definition float_cmp.cc:172
bool le(const T &first, const T &second, typename EpsilonType< T >::Type epsilon)
test if first lesser or equal second
Definition float_cmp.cc:179
@ defaultCmpStyle
the global default compare style (relative_weak)
Definition float_cmp.hh:112
@ relativeStrong
|a-b|/|a| <= epsilon && |a-b|/|b| <= epsilon
Definition float_cmp.hh:108
@ relativeWeak
|a-b|/|a| <= epsilon || |a-b|/|b| <= epsilon
Definition float_cmp.hh:106
@ absolute
|a-b| <= epsilon
Definition float_cmp.hh:110
@ towardZero
always round toward 0
Definition float_cmp.hh:118
@ towardInf
always round away from 0
Definition float_cmp.hh:120
@ upward
round toward
Definition float_cmp.hh:124
@ downward
round toward
Definition float_cmp.hh:122
@ defaultRoundingStyle
the global default rounding style (toward_zero)
Definition float_cmp.hh:126
Dune namespace.
Definition alignedallocator.hh:13
T Type
The epsilon type corresponding to value type T.
Definition float_cmp.cc:25
mapping from a value type and a compare style to a default epsilon
Definition float_cmp.hh:138
static EpsilonType< T >::Type value()
Returns the default epsilon for the given value type and compare style.
Class encapsulating a default epsilon.
Definition float_cmp.hh:288
bool le(const ValueType &first, const ValueType &second) const
test if first lesser or equal second
Definition float_cmp.cc:486
bool eq(const ValueType &first, const ValueType &second) const
test for equality using epsilon
Definition float_cmp.cc:451
static const CmpStyle cstyle
How comparisons are done.
Definition float_cmp.hh:295
bool lt(const ValueType &first, const ValueType &second) const
test if first lesser than second
Definition float_cmp.cc:472
bool ge(const ValueType &first, const ValueType &second) const
test if first greater or equal second
Definition float_cmp.cc:479
static const RoundingStyle rstyle
How rounding is done.
Definition float_cmp.hh:297
FloatCmp::EpsilonType< T >::Type EpsilonType
Type of the epsilon.
Definition float_cmp.hh:304
bool ne(const ValueType &first, const ValueType &second) const
test for inequality using epsilon
Definition float_cmp.cc:458
T ValueType
Type of the values to compare.
Definition float_cmp.hh:299
EpsilonType epsilon() const
return the current epsilon
Definition float_cmp.cc:436
I round(const ValueType &val) const
round using epsilon
Definition float_cmp.cc:495
I trunc(const ValueType &val) const
truncate using epsilon
Definition float_cmp.cc:503
bool gt(const ValueType &first, const ValueType &second) const
test if first greater than second
Definition float_cmp.cc:465