Thread: Segmentation Fault when printf string from a textfile

Change your structure to

Code:

struct Human {
   char name[30];
   int age;
};

Pointers have to be dealt with separately when it comes to reading and writing to files.

Code:

struct Human {
   char *name;
   int age;
};

struct Human human= {"Carl",30};

// save
size_t len = strlen(human.name);
fwrite(&len, sizeof(len), 1, outfile);  // the length of the name
fwrite(human.name, len, 1, outfile); // the name, excluding the \0
fwrite(&human.age, sizeof(human.age), 1, outfile); // the age


// load
size_t len;
fread(&len, sizeof(len), 1, infile);  // the length of the name
human.name = malloc(len+1);  // make space for the chars, and a \0
fread(human.name, len, 1, infile); // the name, excluding the \0
human.name[len] = '\0';
fread(&human.age, sizeof(human.age), 1, infile); // the age

Serialization - Wikipedia is the rabbit hole to go down if you want more.