What is the proper way to read an array of n double from a binary file myfile into
double tab[MAX]
(where n

Question

What is  the   proper  way to read an array of  n   double  from a binary file  myfile  into 
   double tab[MAX] 
  (where  n <= MAX )?

Assume  count  is already declared and has the proper type.

Accepted Answer

count = fread(tab, sizeof(double), n, myfile);

Answer

It's not possible in general since  nb <= MAX  ; we must have  nb < MAX  instead.

Answer

count = fread(tab, sizeof(n * double), 1, myfile);

Answer

count = fread(&tab[1], sizeof(double), n, myfile);

Answer

count = fread(tab, n * sizeof(double), 1, myfile);

Answer

count = 0; 
 for (size_t i = 0; i < n; ++i) { 
 
      count += fscanf(myfile, "%lf", tab + i); 
 
    }

Answer

another way than the other proposals

Answer

count = 0; 
 for (size_t i = 0; i < n; ++i) { 
 
      count += fread(&tab[i], sizeof(double), 1, myfile); 
 
    }

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