CODEWITHSUNDEEP
cpointerstypes
Ameer khan
Ameer khan

Reputation: 49

Pointer assignment error C

I have a struct defined as:

typedef struct _InstNode{
    
    InstInfo* instinfo;
    struct _InstNode *dep1;
    struct _InstNode *dep2;
    bool is_exit;
    bool is_entry;
    unsigned inst_latency;
    unsigned  depth_latency;
} InstNode;

and this is instnode_array :

InstNode *instnode_array;
    instnode_array = (InstNode*)malloc(sizeof(InstNode)*numOfInsts);

Now I'm trying to do the following:-

instnode_array[i].dep1 = instnode_array[j];

I'm getting this error:

incompatible types when assigning to type 'struct _InstNode *' from type 'InstNode {aka struct _InstNode}'

  instnode_array[i].dep1 = instnode_array[j];

Upvotes: 1

Views: 77

Answers (1)

Sourav Ghosh
Sourav Ghosh

Reputation: 134326

TL;DR Note Honor the data types.

instnode_array[j] gives you a struct _InstNode whereas, dep1 is of type struct _InstNode *.

You may want to write

instnode_array[i].dep1 = &(instnode_array[j]);

if that make sense to you.

Upvotes: 3

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