How to get the fractional part of a floating point number?

Question

Tell me, I can not understand. There is a code

#include <stdio.h> int main(void) { float money; do { printf ("How much change should I give you?\n"); money = GetFloat(); } while (money<0); printf("%.2f\n", money); }

How can I extract decimal places from the variable float?

what does it mean to extract? Do you want to get only the fractional part? - Mikhail Vaysman

Accepted Answer · 2017-01-20T14:24:51

Use the modf function. It should be borne in mind that the sign of the fractional part will be the same as the sign of the original number. For negative numbers, the fractional part will be negative.

 float money; double fractpart, intpart; money = 8.12; fractpart = modf(money, &intpart); printf("Integral part = %lf\n", intpart); printf("Fraction Part = %lf \n", fractpart);

How many people familiar with mathematics assume that the fractional part is strictly less than 1 and greater than or equal to 0.

How to get the fractional part of a floating point number?

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