Dynamically Allocate An Array Of Structs

Dynamically Allocate An Array Of Structs | C Programming Tutorial

Рет қаралды 33,929

Жыл бұрын

How to dynamically allocate an array of structs in C, including how to use realloc() to re-allocate and increase the size of the array, and a warning about potential memory leaks that can occur if we forget to free dynamically allocated memory that the array struct members themselves point to (including how to prevent the memory leak). Source code: github.com/portfoliocourses/c.... Check out www.portfoliocourses.com to build a portfolio that will impress employers!

Пікірлер: 46

@r0drigo360 Жыл бұрын

I was trying to fix a bug for the last 3 hours. I tried StackOverflow and all kinds of forums and couldn't find an answer until I watched your video🙌 Thanks a lot !!!!!!!!!!!

@MrSnitsarenko

Amazing explanation! I have spent literally a week debugging a code, with googling and many articles StackOverflow etc. Usually big vague paragraphs, and no answer at the end! and here, the author right away clearly points out that you have to allocate memory for struct members as well and use strcpy. Thank you!

@DataToTheZero

Outstanding presentation as always! I'd like to suggest an enhancement to further streamline the management of dynamic memory, especially considering the complexities introduced by structures containing pointers to such memory. Adopting a systematic approach, akin to what one might find in object-oriented languages, by implementing functions that act as creators, modifiers, and destructors for your data structures, can be quite beneficial.

@brendanreeves9645 Жыл бұрын

Your videos are such lifesavers -- thank you!

@naboulsikhalid7763

one time explained, onetime understood. Thank you a lot

@raptoress6131

This is great, I found exactly what I was looking for

@thomasmarczi7345 Жыл бұрын

Great video! Thank you so much, it helped a lot! Was having a hard time figuring out what needs to be used to assign my string value to char* property in struct. For some reason array[2].description = "string" overwrote the description property for array[0] and array[1] as well, with the same value. Stackoverflow and other forums didn't help, you did.. it's the strcpy that is needed here!

@_karf_ Жыл бұрын

Your video is the answer to all my questions, thank you <3

@juanmacias5922 Жыл бұрын

Such a good video, soooooooo much info!

@fifaham Жыл бұрын

Thank you Kevin, that was helpful.

@thanhcong1349 Жыл бұрын

Thanks for your helpful tutorial video.

@towtruckn Жыл бұрын

Kevin; these are great videos. Just a question about freeing memory; is it possible to declare the size of the memory for the description variable inside the struct definition. In this way the free() function would only have to be called once when freeing the memory for any Point variable.

@dimitrioskalfakis Жыл бұрын

very nice. simple and useful.

@norbertracz1009 Жыл бұрын

Thaks!

@yue7507 Жыл бұрын

Thank you!

@ramakrishna4092 Жыл бұрын

Hi sir one question here we can use -> operator there also like (array+2)->y=3; can you pls reply to me whether it's right or wrong....

@HoangNguyen-nz4xe

Hi, i have a question: while allocating memory, i saw lots of people doing this (int*)malloc(...) is it necessary or just nice to have. Does it cause any issues? Thank you.

@Hackathons-wf1lg Жыл бұрын

where did you learn how to program in C so well? Also thoughts on CPP?

@mikehibbett3301

I've been designing embedded systems for 35 years now, and I've never had to use dynamic memory, or floating point datatypes. I'm curious if anyone else had the same experience? I've been on a few architecture design reviews where I've had some pushback, but we ended up without needing malloc.