What you’re doing will work. Each time you increment contents, you also increment counter, so contents – counter gives you the original pointer that you can free. Of course, a better way of doing this would be to use a temporary pointer to increment through the allocated memory so you can use the original to … Read more
This answer is based on the assumption that you do proper handling of your pointers between the part where you allocate memory for 1 element each and where you try to reallocate the memory. This part // realloc to correct size for(int a = 0; a < word_nb; a++) { *(word_list + (word_nb-1)) = (char … Read more
It is always easier to divide program into logical bits and place them in functions. char *addToBuff(char *buff, int ch, size_t *size) { //working on local variable buff. No need for a temporary variable buff = realloc(buff, *size + 1); if(buff) { buff[*size] = ch; *size += 1; } return buff; } char *readToBuff(FILE *fi, … Read more
You should reduce the number of columsn, not rows. Not mat1 but mat1->array should be reallocated. Not nrow and ncol (not updated) but mat1->nrows and mat1->ncols (updated) should be used for the new size. The elements are size_t, so allocating for int mayn’t be enough. Using the variable for calculating size is safe. In the … Read more
At least this statement array->values = realloc(array->values, array->capacity); shall be rewritten like array->values = realloc(array->values, array->capacity * sizeof( Value ) ); Though it would be more safer to use an intermediate pointer like for example Value *tmp = realloc(array->values, array->capacity * sizeof( Value ) ); if ( tmp != NULL ) { array->values = tmp; … Read more
In your function int huffman(node_t *huff, int n) you try to realloc() the huff pointer but in C we pass variables by value so you only receive a copy of the pointer. This means caller retains the original pointer and the realloc() memory is lost when you return from the function. You need to pass … Read more
The function is not updating the caller’s value of client_details, you need one more level of pointer: void func(struct client_detail **client_details,int *size){ *client_details = realloc(*client_details, (*size + 1) * sizeof(**client_details)); *size = *size + 1; } int main() { struct group_detail *group_details = malloc(0 * sizeof(*group_details)); struct client_detail *client_details = malloc(1 * sizeof(*client_details)); int size … Read more
You could do it in node.js with an http request to the page, then screen scrape the page for information. I’m sure they have standard css selectors, so you just look for those with regular expressions and get their values. The code would look something like this (I haven’t tested this code, but riffed on … Read more
You need to access the dataset property: document.getElementById(“the-span”).addEventListener(“click”, function() { var json = JSON.stringify({ id: parseInt(this.dataset.typeid), subject: this.dataset.type, points: parseInt(this.dataset.points), user: “Luïs” }); }); Result: // json would equal: { “id”: 123, “subject”: “topic”, “points”: -1, “user”: “Luïs” } 2 solved How can I get the values of data attributes in JavaScript code?
You can try the below code to convert string array to string public class JavaApplication20 { public static void main(String[] args) { // TODO code application logic here String test1 = “”; String[] test = {“this”,”this2″}; int length = test.length; //System.out.println(“Length :”+length); for(int i=0; i<length; i++){ //System.out.println(test[i]); test1 += test[i]+”,”; } int len = test1.length(); … Read more