How find a substring in struct

Hi to All,

I need to search the string occurencies in a structure like this:

Code:

---

struct node
{
  char info[BUFLEN];
  struct node *next;
};
 
/* the word to search */
char myWord[10];

---

Can You suggest to me a sample, in order to resolve my problem ?

Best Regards

http://www.cprogramming.com/tutorial/lesson15.html

Also Google search strcmp.

What you need is the strstr() function. The prototype of the function is the following:

Code:

---

char * strstr ( const char *, const char * );

---

In your case, you need to use it like this:

Code:

---

struct node myNode;

// put some stuff into info

if (strstr(myNode.info, myWord) != NULL)
{
    puts("I found it!");
}

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Quote:

---

Originally Posted by KONI

What you need is the strstr() function.

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Ok,
But my problem is this:

In the struct, each node can be for example
"My oncle is the oncle of Martin"
"My oncle is engeener"
etc.

I need to count the occurencies of word "oncle" in the entire struct. In my example are 3.

How can perform this?

By

Quote:

---

Originally Posted by jverkoey

http://www.cprogramming.com/tutorial/lesson15.html

Also Google search strcmp.

---

like this.

You iterate over all the list nodes, use strcmp() to see if the strings match and then increment a counter.

If you want to search for the number of occurrences within a string, then you need to use strstr. Search for information about the function and you'll see that it returns a non-null char* that points to the exact location of the needle (the string you're searching for) in the haystack (the string you're searching in). Using this char* you can do another strstr to find the next occurrence (if there is one!).