C geeks?

[everanddespair]

I am writing a program that takes a decimal number and converts it to hex. The input can be int or float. Now, I got it to convert int to hex but I can't convert the float to hex. It's dropping the fraction completely and just using whatever is to the left of the decimal point.
any suggestions?

Comments

[brucix]

What do you want the hex representation to look like? If I type 11.11, do you want it to convert to a.a?

If so, separate the float into 2 parts, the integer part and the fractional part, and multiply the fractional part by a large enough power of 10 to convert it to an integer, then convert both to hex and print them out appended with the decimal point in between.

[brucix]

err, b.b

[everanddespair]

No it's supposed to be IEEE Standard 754

[brucix]

I found this guy's program with the googler: http://johnsantic.com/comp/float.html

[two_star]

Do you want to format a float as a hexadecimal floating point number? So that 1.0e+13 would come out as the string "9.184E73e+A"? (This seems like a weird thing to want, and the 'e's are ambiguous.)

[everanddespair]

no like, using an int as an example, 123 would be 0x7b in hex.