Have you add getchar() after all scanf() function ?

ive replaced scanf with getchar

Have you add getchar() after all scanf() function ?

oops i forgot

ive replaced scanf with getchar

I only suggest this when you want input single char

ch = getchar() is better than scanf("%c", &ch)

hey man , thank you it is not exiting like before

but it is exiting before the for loop , should i send you the whole code in personal? because here there is limit to what i send

but it is exiting before the for loop , should i send you the whole code in personal? because here there is limit to what i send

it goes to else

Idk, but try to fix your code until it compiles without no warn

in these after printf("Your flight has been confirmed! \n Here are the Flight details\n"); it is exiting

Idk, but try to fix your code until it compiles without no warn

ok but if you find any error in my code then please let me know

Have you add getchar() after all scanf() function ?

do i have to add getchar after the scanf function which is used for getting the integer input?

do i have to add getchar after the scanf function which is used for getting the integer input?

Every scanf() function

scanf() function will remain newline in input stream

Every scanf() function

ok, i did this , and still it is exiting after printf("Your flight has been confirmed! \n Here are the Flight details\n");

ok, i did this , and still it is exiting after printf("Your flight has been confirmed! \n Here are the Flight details\n");

Fix indentation

https://pastebin.com/DgNpDQ3B

Fix indentation

please help sir

so far i have not found anything

https://pastebin.com/DgNpDQ3B

when i debug it, its showing Program received signal SIGSEGV, Segmentation fault. __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:96 96

https://pastebin.com/DgNpDQ3B

i found out that passport array is causing the problem

i found out that passport array is causing the problem

please sombody take a look

Why this prints 2 and not 0 Cout<<((2/sqrt(9))*(sqrt(9)));

Why this prints 2 and not 0 Cout<<((2/sqrt(9))*(sqrt(9)));

why should it print 0?

how do i erase particular element from an array?

why should it print 0?

He means that 2 and 3 are integer values and 2/3 should be zero

std::cout is just like printf but without type specifier explicitly. It has type overload

why should it print 0?

I searched online now Previously I was expecting it to be zero because two divided by 3 will be zero Now I understood that even 2 will be converted to double so the answer of 2/sqrt9 will be in double

hey, i want to assign null/0 to the elements of array how should i do it

hey, i want to assign null/0 to the elements of array how should i do it

Just initialise like this int a[n] ={0}

std::cout is just like printf but without type specifier explicitly. It has type overload

Using namespace std; No need std::

using namespace std is not a good practice. BTW, though unrelated to this topic because using directive is different from using declaration, std::cout and cout may differ after using std::cout due to ADL.

hey, i want to assign null/0 to the elements of array how should i do it

You can use std::fill in <algorithms> for any containers and arrays, if you're using built-in arrays, std::memset in <cstring> is an another option with efficiency consideration.

Using namespace std; No need std::

https://www.google.com/amp/s/www.geeksforgeeks.org/using-namespace-std-considered-bad-practice/amp/

how do i erase particular element from an array?

It's impossible to shrink the size of an array, so you can't erase element in an array, if you want to do this, use variable length containers like std::vector and then use their erase_if method instead. However, there is a workaround for arrays. Those who like functional programming styles may tend to create new sequences instead of modifying the old one. For example, your_array | std::views::filter(pred) will create a new range containing all elements in your_array satisfying the predicate you offer. You can also use the old school std::remove_if and then use std::span or something to create a new non-owning wrapper.

You can use std::fill in <algorithms> for any containers and arrays, if you're using built-in arrays, std::memset in <cstring> is an another option with efficiency consideration.

If it's stack array like type arr[x] , just initialized the first member with zero, The rest also will implicityy initialized to zero

If it's stack array like type arr[x] , just initialized the first member with zero, The rest also will implicityy initialized to zero

True. But he is asking about "assignment", not initialization i deem.

True. But he is asking about "assignment", not initialization i deem.

yeah

im trying to write in a array but what i get is trash at the end not what i want

https://www.toptal.com/developers/hastebin/raw/vakepicasi

this is the code

Hello how to passing array of struct to a function?

Hello how to passing array of struct to a function?

pointer of struct parameter

pointer of struct parameter

can you give an example?

there few ways to do that

if you want to change the content of a structure you should use a pointer

if you want to change the content of a structure you should use a pointer

He said array of struct, not struct

if you want to change the content of a structure you should use a pointer

if changing the original value isn’t necesary you can pass it as parameter

He said array of struct, not struct

yes a pointer to an array of structures

if changing the original value isn’t necesary you can pass it as parameter

I just want to take the value to put in the function

I just want to take the value to put in the function

pass member of struct array as argument ?

pass member of struct array as argument ?

Yes

‘ void function( struct mytype * mystruct ) { // access it with *(mystruct + (sizeof(struct mytype) * index ) } ‘ this how to do a pointer

pass member of struct array as argument ?

btw are you Indonesian?

‘ void function( struct mytype mystruct[] ) { // access it with mystruct[ index ] } ‘ this how to pass it as a parameter

‘ void function( struct mytype * mystruct ) { // access it with *(mystruct + (sizeof(struct mytype) * index ) } ‘ this how to do a pointer

Sorry can you please explain it i didn't get you how it will work

‘ void function( struct mytype mystruct[] ) { // access it with mystruct[ index ] } ‘ this how to pass it as a parameter

array parameters will decay into pointers

‘ void function( struct mytype * mystruct ) { // access it with *(mystruct + (sizeof(struct mytype) * index ) } ‘ this how to do a pointer

I don't think you need sizeof(mystruct) * index), why not + index directly

Except you're doing it with another struct types that has different size

True. But he is asking about "assignment", not initialization i deem.

can you give an example?

For example, the struct member is barang[1].nama, I want to put barang[1].nama into the function

‘ void function( struct mytype * mystruct ) { // access it with *(mystruct + (sizeof(struct mytype) * index ) } ‘ this how to do a pointer

you define a struct type struct mytype{ int value1; int value2; } then create an array out of it struct mytype mystruct[30]; then pass a pointer to the first element to your function now you can access any element by doing pointer arithmatic as follows: *( mystruct + (sizeof(struct mytype * index)

can you give an example?

Let's say int a[10], you can use std::fill(std::begin(a), std::end(a), 0) to assign 0 to every element in array a. Since non-member begin/end function is introduced in C++11, you can use std::fill(a, a+10, 0) instead if you are using older implementations.

memset version is like: std::memset(a, 0, sizeof a)

I don't think you need sizeof(mystruct) * index), why not + index directly

because the size of a structure is usually more that one byte

but please note that the memset version is valid for specific values like 0, other values are possibly invalid, std::fill works for any values you want to assign.

because the size of a structure is usually more that one byte

Okay sorry, i forgor

int8_t x[] *(x + 1) with int32_t x[] *(x + 1) is different

Since 32 bit is 4 byte, it should be *(x + 4)

Edited

‘ void function( struct mytype mystruct[] ) { // access it with mystruct[ index ] } ‘ this how to pass it as a parameter

remember that usually using this with array of structures isn’t a good idea because it will eatup more ram

ok thanks everyone i will try it

Approximately how long does it take to become proficient in using C language?

understanding the basics only takes few weaks but getting rid of segfaults (sigsegv) take roughly about 4-6 months

but it worth it because C gives you almost the best performance you might get from a programming language

also you will have a good understanding of your program internals and how to speed things up even more than how you would do with rust or c++

understanding the basics only takes few weaks but getting rid of segfaults (sigsegv) take roughly about 4-6 months

Me anaylzing the program and take a look on compiler message

remember that usually using this with array of structures isn’t a good idea because it will eatup more ram

Why ?

understanding the basics only takes few weaks but getting rid of segfaults (sigsegv) take roughly about 4-6 months

few weaks not months sorry

Why ?

because when you pass a parameter to a function you are copying it’s content somewhere on the memory (usually the stack but sometimes cpu registers if the value is small enough) so if you have a big array then you pass it as a parameter to a function. you will end up with two instances on memory of the same array, this is why more memory will be required not mentioning that copying the content of a huge array might take sometime and will slow your program

because when you pass a parameter to a function you are copying it’s content somewhere on the memory (usually the stack but sometimes cpu registers if the value is small enough) so if you have a big array then you pass it as a parameter to a function. you will end up with two instances on memory of the same array, this is why more memory will be required not mentioning that copying the content of a huge array might take sometime and will slow your program

But it's pointer to a struct