Round to Next .05 in C

Question

Consider a float value like 1.82 set by the user. How do I find the next highest .05 value? For the given example the next highest value is 1.85.

Is the

Answer 1

Code for @Justin's answer. Note that this is very easy to generalize.

#include 
#include 

int main(void) {
    int i;
    double numbers[] = {
        1.82, 0.3, 0.2, 0.5, 10000000000.849,
    };

    for (i = 0; i < sizeof(numbers)/sizeof(numbers[0]); ++i) {
        double scaled = ceil(20 * numbers[i]);
        printf("%.2f\n", scaled/20.0);
    }

    return 0;
}