FmtSetFloat Struct Reference

#include <evo/impl/str.h>

Detailed Description

Holds floating point formatting attributes.

• Used with operator<<() on String, Stream, and StreamOut
  • Each floating point number counts as a "field" when formatted to output object with field alignment state (like String::Format or Stream::Format)
  • See String Formatting and Stream Formatting
• This uses "unspecified" defaults, which means default attributes depend on the output object used, which uses configured formatting state or real defaults if no formatting state kept

Example

#include <evo/io.h>
#include <evo/string.h>
using namespace evo;
static Console& c = con();

int main() {
    // Format to stream
    Stream::Format(c.out) << 12.3 << ',' << FmtSetFloat(fPREC2, 6) << 10 << ',' << 20 << NL
        << fPREC3 << 1.23 << NL;

    // Format same output to a string
    String str;
    String::Format(str) << 12.3 << ',' << FmtSetFloat(fPREC2, 6) << 10 << ',' << 20 << NL
        << fPREC3 << 1.23 << NL;

    return 0;
}

Output:

12.3,010.00,020.00
12.300

Public Member Functions
	FmtSetFloat (int precision=fpCURRENT, int width=-1, char ch=0, char ch_sp=0)
	Constructor with all attributes. More...
void	merge (const FmtSetFloat &src)
	Merge from source (used internally). More...
FmtSetFloat &	reset ()
	Reset to defaults. More...

Public Attributes
char	pad_ch
	Padding character, 0 to ignore (leave current fill character) (default: '0') More...
char	pad_ch_sp
	Padding character used with special value (inf or nan), 0 to ignore (leave current fill character) (default: ' ') More...
int	pad_width
	Width to fill to, 0 for none, -1 to ignore (leave current width) (default: 0) More...
int	precision
	Floating point precision (number of digits after decimal), fPREC_AUTO for automatic (default: fPREC_AUTO) More...

Constructor & Destructor Documentation

FmtSetFloat()

FmtSetFloat ( int  precision = fpCURRENT, int  width = -1, char  ch = 0, char  ch_sp = 0  )

inline

Constructor with all attributes.

Parameters

precision	Precision to use (number of digits after decimal), fPREC_AUTO for automatic (default: fPREC_AUTO)
width	Width to pad to, -1 for unspecified (default: 0)
ch	Padding character to use, 0 for unspecified (default: '0')
ch_sp	Special padding character to use when formatting special values like "inf" or "nan" (default: ' ')

Member Function Documentation

merge()

void merge ( const FmtSetFloat &  src )

inline

Merge from source (used internally).

• This copies explicit values from src, but ignores "leave current" values

Parameters

src	Source to copy

reset()

FmtSetFloat& reset ( )

inline

Reset to defaults.

Returns

This

Member Data Documentation

pad_ch

char pad_ch

Padding character, 0 to ignore (leave current fill character) (default: '0')

pad_ch_sp

char pad_ch_sp

Padding character used with special value (inf or nan), 0 to ignore (leave current fill character) (default: ' ')

pad_width

int pad_width

Width to fill to, 0 for none, -1 to ignore (leave current width) (default: 0)

precision

int precision

Floating point precision (number of digits after decimal), fPREC_AUTO for automatic (default: fPREC_AUTO)

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The documentation for this struct was generated from the following file:

• evo/impl/str.h