#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(){
  char aaa[35] = "1.25";
  char* bbb = &(aaa[0]);
  char** ccc = &(bbb);
  float a = strtof(*ccc, ccc);
  printf("%f\n", a);
  return 0;
}

2097152.000000