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--- pdclib:drawingboard [2020/10/05 13:49]
solar
+++ pdclib:drawingboard [2021/07/12 15:51] (current)
solar [Floating Point Support for printf]
@@ Line 31: / Line 31: @@
 A request from downstream was to add FP support to my ''printf()'' implementation (which currently **breaks** for %f/%g et al. because it doesn't draw the accompanying value from the stack -- not nice!).
-I got a good introduction to the Dragon4 binary-to-string conversion algorithm as well as the paper for the Grisu3 small integer optimization, but this would be another major construction site (touching ''<math.h>'' and ''<fenv.h>'' matters as well), and I feel it would be just one thing too many to tackle at this point.
+I got a good introduction to the Dragon4 binary-to-string conversion algorithm as well as the paper for the Grisu3 small integer optimization. Big Integer support is required for there, and already implemented, so there might be another checkmark added here soon (tm).
+Links:
+  * [[https://lists.nongnu.org/archive/html/gcl-devel/2012-10/pdfkieTlklRzN.pdf|How to Print Floating-Point Numbers Accurately]] (Steele & White, //Dragon4//)
+  * [[http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.72.4656|Printing Floating-Point Numbers Quickly and Accurately]] (Burger et al.)
+  * [[https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf|Printing Floating-Point Numbers Quickly and Accurately with Integers]] (Florian Loitsch, //Grisu3//)
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