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
Introduction The malloc: *** error for object 0x147606ac0: pointer being realloc’d was not allocated is a common error encountered when attempting to reallocate memory in C programming. This error occurs when a pointer is passed to the realloc() function, but the pointer was not allocated with malloc() or calloc() beforehand. This error can be caused … 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
I want to display an image when button is clicked and at same time the color of text in button should change. I am using bootstrap for this solved I want to display an image when button is clicked and at same time the color of text in button should change. I am using bootstrap … Read more
Assuming that column A of sheet1 are date/times, and not text, and you are attempting to find how many date/times are more than 16 hours old then you simply want to place the following formula in sheet2!F7: =COUNTIF(sheet1!A:A,”<“&NOW()-0.75) (16 hours is 0.75 of a day.) If the data in column A is text, then it … Read more
First read the input from the command line (hint : use sys.argv). Also you will need to figure out how to convert strings to python numbers. Then check if b**2-4*a*c < 0. If yes, then raise a ValueError about that there are no real roots. Else solve for the roots: roots = (b ± sqrt(b**2-4*a*c)) … Read more
You can try this:<[a-z\s]+id=[\’\”]mobile[\w]+[\’\”][\sa-zA-Z\d\’\=\;\:]*>([a-zA-Z\d\s]+)<[\/a-z\s]+> Anyway it will not match special chars or symbols. You can test and optimize it here: https://regex101.com/r/fnYQ1o/10 EDIT – Code example This could be the portion of code to extract the messages: var rgx = @”<[a-z\s]+id=[\’]mobile[\w]+[\’][\sa-zA-Z\d\s\’\=\;\:]*>([a-zA-Z\d\s]+)<[\/a-z\s]+>”; var txt = “<!DOCTYPE html><html lang=’it’ xml:lang=’it’><!– <![endif]–><head><meta http-equiv=’Content-Type’ content=”text/html; charset=UTF-8”><title>Banca Mediolanum S.p.A. | Accesso … Read more
You can create something like that procedurally. I just created a behaviour that will create a senoidal track much like your picture above: // written by ‘imerso’ as a StackOverflow answer. using System.Collections; using System.Collections.Generic; using UnityEngine; public class SlopeTerrain : MonoBehaviour { public int heightInMeters = 5; public int widthInMeters = 128; public float … Read more
you can use unicode code points: Superscript digits \u2070\u00b9\u00b2\u00b3\u2074\u2075\u2076\u2077\u2078\u2079 Subscript digits U+2080 to U+2089 Example: var superscriptstring = “C\u2074”; var subscriptstring = “C\u2081”; solved C# – I need to display a variable with an exponential [closed]