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TTMath
0.9.4
C++ bignum library
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#include <ttmathtypes.h>
Data Fields | |
uint | base |
bool | scient |
sint | scient_from |
bool | base_round |
sint | round |
bool | trim_zeroes |
uint | comma |
uint | comma2 |
uint | group |
uint | group_digits |
uint | group_exp |
this struct is used when converting to/from a string /temporarily only in Big::ToString() and Big::FromString()/
Definition at line 406 of file ttmathtypes.h.
uint ttmath::Conv::base |
base (radix) on which the value will be shown (or read) default: 10
Definition at line 412 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::FromString(), ttmath::Parser< ValueType >::GetValueOfVariable(), ttmath::Big< exp, man >::ToString(), and ttmath::Big< exp, man >::ToWString().
bool ttmath::Conv::base_round |
if 'base_round' is true and 'base' is different from 2, 4, 8, or 16 and the result value is not an integer then we make an additional rounding (after converting the last digit from the result is skipped) default: true
e.g.
Conv c; c.base_round = false; Big<1, 1> a = "0.1"; // decimal input std::cout << a.ToString(c) << std::endl; // the result is: 0.099999999
Definition at line 445 of file ttmathtypes.h.
uint ttmath::Conv::comma |
the main comma operator (used when reading and writing) default is a dot '.'
Definition at line 476 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::FromString(), ttmath::Parser< ValueType >::GetValueOfVariable(), and ttmath::Big< exp, man >::ToString().
uint ttmath::Conv::comma2 |
additional comma operator (used only when reading) if you don't want it just set it to zero default is a comma ','
this allowes you to convert from a value: 123.45 as well as from 123,45
Definition at line 487 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::FromString(), and ttmath::Parser< ValueType >::GetValueOfVariable().
uint ttmath::Conv::group |
it sets the character which is used for grouping if group=' ' then: 1234,56789 will be printed as: 1 234,567 89
if you don't want grouping just set it to zero (which is default)
Definition at line 496 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::FromString(), and ttmath::Parser< ValueType >::GetValueOfVariable().
uint ttmath::Conv::group_digits |
how many digits should be grouped (it is used if 'group' is non zero) default: 3
Definition at line 503 of file ttmathtypes.h.
sint ttmath::Conv::round |
used only in Big::ToString() tells how many digits after comma are possible default: -1 which means all digits are printed
set it to zero if you want integer value only
for example when the value is: 12.345678 and 'round' is 4 then the result will be 12.3457 (the last digit was rounded)
Definition at line 460 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::ToString().
bool ttmath::Conv::scient |
used only in Big::ToString() if true the value will be always shown in the scientific mode, e.g: 123e+30 default: false
Definition at line 420 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::ToString().
sint ttmath::Conv::scient_from |
used only in Big::ToString() if scient is false then the value will be printed in the scientific mode only if the exponent is greater than scien_from default: 15
Definition at line 429 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::ToString().
bool ttmath::Conv::trim_zeroes |
if true that not mattered digits in the mantissa will be cut off (zero characters at the end – after the comma operator) e.g. 1234,78000 will be: 1234,78 default: true
Definition at line 469 of file ttmathtypes.h.
Referenced by ttmath::Big< exp, man >::ToString().