If the following structure is written to a file using fwrite(), can fread() read it back successfully? struct emp
{
char *n;
int age;
};
struct emp e={"CuriousTab", 15};
FILE *fp;
fwrite(&e, sizeof(e), 1, fp);

Question

If the following structure is written to a file using fwrite(), can fread() read it back successfully? struct emp
{
    char *n;
    int age;
};
struct emp e={"CuriousTab", 15};
FILE *fp;
fwrite(&e, sizeof(e), 1, fp);

Accepted Answer

Since the structure contain a char pointer while writing the structure to the disk using fwrite() only the value stored in pointer n will get written. so fread() fails to read.

If the following structure is written to a file using fwrite(), can fread() read it back successfully? struct emp { char n; int age; }; struct emp e={"CuriousTab", 15}; FILE fp; fwrite(&e, sizeof(e), 1, fp);

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If the following structure is written to a file using fwrite(), can fread() read it back successfully? struct emp { char *n; int age; }; struct emp e={"CuriousTab", 15}; FILE *fp; fwrite(&e, sizeof(e), 1, fp);

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Discussion & Comments

If the following structure is written to a file using fwrite(), can fread() read it back successfully? struct emp { char n; int age; }; struct emp e={"CuriousTab", 15}; FILE fp; fwrite(&e, sizeof(e), 1, fp);