I’m learning C right now and there is a conversion specifier %a which writes a number in p-notation as opposed to %e which writes something in e-notation (exponential notation).
What is p-notation?
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I’m learning C right now and there is a conversion specifier %a which writes a number in p-notation as opposed to %e which writes something in e-notation (exponential notation).
What is p-notation?
You use
%ato get a hexadecimal representation of a floating-point number. This might be useful if you are a student learning floating-point representations, or if you want to be able to read and write an exact floating-point number with no rounding error (but not very human-readable).This format specificier, along with many others, was added as part of the C99 standard. Dinkumware have an excellent C99 library reference free online; it’s PJ Plauger’s company, and he had a lot to do with both C89 and C99 standard libraries. Link above is to printing functions; the general library reference is http://www.dinkumware.com/manuals/default.aspx