Fraction.h File Reference
Detailed Description
Interface of the CFraction class - Code for handling fraction strings.This class is used like a double. Do anything you would do with a double, plus assign strings to it. When you need to get a string representation, use one of the String calls. My favorite is ForceToStockString which returns a string for the closest valid stock transaction denominator up to MaxDen (default 256). This is great for applications that need to show stock prices in fractions without resorting to a table lookup or showing unusual prices in decimal.
C calls and plain calls for ASCIIZ support are provided
A description of the Fraction Algorithm is also given.
Classes | |
| class | CFraction |
| CFraction - Code for handling fraction strings. More... | |
Defines | |
| #define | FRACTION_MAX_PRECISION 10.0e-15 |
| Significant digits. | |
Functions | |
| double | Fracatof (const char *pszNum) |
| Convert string that may include a fraction to floating point (double). | |
| char * | Fracftoa (double f, char *pszBuffer, double AllowedError=FRACTION_MAX_PRECISION) |
| Convert double to a string that includes the whole part, space, and the fraction (numerator/denominator). | |
| char * | Fracftoa (double f, char *pszBuffer, int MaxDen) |
| Convert double to a string that includes the whole part, space, and the fraction (numerator/denominator). | |
| char * | DoubleToStockString (double f, char *pszBuffer, int MaxDen=256) |
| Returns 6.4f unless denominator is less than or equal to MaxDen and in 2,4,8,16,32,64,128,256. | |
| char * | ForceDoubleToStockString (double f, char *pszBuffer, int MaxDen=256) |
| Returns closest fraction string with a denominator less than or equal to MaxDen and in 2,4,8,16,32,64,128,256. | |
| double | FracParts (double f, __int64 &Whole, __int64 &Num, __int64 &Den, double AllowedError=FRACTION_MAX_PRECISION) |
| Convert a double to its fractional parts. | |
| double | FracParts (double f, __int64 &Whole, __int64 &Num, __int64 &Den, int MaxDen) |
| Convert a double to its fractional parts. | |
| double | FracPartsStock (double f, __int64 &Whole, __int64 &Num, __int64 &Den, int MaxDen) |
| Convert a double to its fractional parts. | |
