Questions tagged [lab5]
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14 questions
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Lab 5 - Inheritance check50 error
Attempted CS50 Lab 5 inheritance. My code looks correct and compiles. I also double-checked with Brian's solution and they were identical. Yet when I passed it through check50, I got multiple errors ...
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p is assigned a memory first but when create family is called again, isnt the last memory lost as now p points at a new chunk of memory?
person *p = malloc(sizeof(person));
// If there are still generations left to create
if (generations > 1)
{
// Create two new parents for current person by recursively calling create_family
...
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1
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Lab 5 Inheritance Segmentation Fault
I'm getting a segmentation fault on my code for Lab 5. Debug50 says line 57 is to blame, and when I look at the info, it looks like parent0 and parent1 are both empty? (If I'm understanding 0x0 right?)...
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Segmentation Fault on lab5 Inheritance
I'm trying to do lab5 inheritance. The code compiles and prints the correct output but ends with "Segmentation fault (core dumped)"
debug50 shows a segfault on line 86:
free_family(p->...
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In lab5, why using syntatic sugar like "--generations" doesn´t work (we have to use "generations - 1")?
Could anyone explain the difference between "variable - 1", "--variable" and "variable--"? In lab5 I have noticed that this difference is responsible for breaking the ...
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I'm having a segmentation fault on Inheritance, Lab 5
I've narrowed it down to line 57
x->alleles[i]=x->parents[i]->alleles[0];
I don't understand why it's not working, any help would be appreciated. Here's the full create_family function:
// ...
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Inheritance - Lab 5
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
// Each person has two parents and two alleles
typedef struct person
{
struct person *parents[...
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I have a segmentation fault in Lab5, about free_family function
// Free `p` and all ancestors of `p`.
void free_family(person *p)
{
while (p != NULL)
{
free_family(p->parents[0]);
free_family(p->parents[1]);
free(p);
}
...
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1
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467
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free_family does not work properly | INHERITANCE
I have executed following code for free family function -
void free_family(person *p)
{
// TODO: Handle base case
if(p->parents[0] == NULL && p->parents[1] == NULL)
{
...
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1
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1
answer
309
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When does a recursive function actually repeat?
I was just wondering when exactly a recursive function repeats itself.
Below is code from inheritance.c from CS50's Lab 5:
person *create_family(int generations)
{
// TODO: Allocate memory for new ...
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Lab5 free_family function
I have created the below function to free memory allocated by the create_family.
// Free `p` and all ancestors of `p`.
void free_family(person *p)
{
// TODO: Handle base case
if(p == NULL)
...
- 117
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1
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430
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Lab 5 Check50 Error Question
When I run Check50 I get an error. I have watched the hint video and my code matches what is shown. I have attached a screenshot of my error as well as the code below. Thank you for the help!
person *...
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2
answers
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Segmentation Fault on Inheritance, Lab 5
I tried lab4 but I was having issues so I watched Brian's solution walkthrough.
The code compiles and all goes well but when I run the program it shows a segmentation fault.
debug50 shows a segfault ...
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1
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stdbool.h in lab5 inheritance
Does anyone know the reason for including (stdloob.h) in lab5 ? what is the importance of this header file in the code ? I already check it without including this file and it was ok.
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