c struct pointer array allocate sigsegv

Question

I'm new to c and I have the following problem:

after executing this part of the code

TypeDefStruct tdss[10];
for(...) {
        TypeDefStruct *tds = (TypeDefStruct*)malloc(sizeof(TypeDefStruct));
        strcpy(&tds->data, charPointerArray[index]) // works (not original code)
        memcpy((void*) &tdss[index], (void*) &tds, sizeof(TypeDefStruct)); // new
        free(tds);  // new
    }

an error occurs here

TypeDefStruct *tds = &tdss[0]; // worked before
printf("\twith input: \"%s\"\n", tds->data); // worked before

the TypeDefStruct:

typedef struct TypeDefStruct{
    char* data;
} TypeDefStruct;

also the error sigsagv occurs at some point (don't know where, may not here at all...)

what I'm trying to do

I am trying to copy this struct into an array and manage my memory correctly.

please, don't mind asking for more information!

Answer 1

strcpy(&tds->data, charPointerArray[index]) // works (not original code)

data is an uninitialized object, you need to allocate an array with malloc . Also &tds->data argument is wrong, you need to use tds->data .

Answer 2

In my case this did not solve all my errors. Also not the sigsegv.

But there is a Syntax error in

memcpy((void*) &tdss[index], (void*) &tds, sizeof(TypeDefStruct)); !

Since tds is a type defined struct we don't need the & . At least I think so...