Hi...i have a txt file where the first number define the size of the array's, i know that calloc or malloc can reserve memory, but how?

this code:

typedef struct alpha{
                     int *size;
                     char name;
                     int tot;
                     char line[60];
                     }ALPHA;

fgets(line,60,fp);
tot=atoi(line);
size=(int*)calloc(name,sizeof(int);

Imagine that in the first line of the txt is the number 10, wiht this code the size of name will be 10? like name[10]???