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Frexp

Item Value Header filemath.h Declarationfloat frexpf(float num, int *exp);double frexp(double num, int *exp);long double frexpl(long double num, int *exp); Functiondecomposes the num into a mantissa in the range 0.5 to less than 1, and an integer exponent such that num = mantissa * 2^exp. ReturnThe mantissa is returned by the function, and the exponent is stored at the variable pointed to by exp. #include <math.h>   #include <stdio.h>   int main(void)   {      int e;      double f;      f = frexp(10.0, &e);      printf("%f %d", f, e);     } 0.625000 4