I want recommendations for books to learn android app development using the c++ language.
Only thing I can say to you: I feel bad for you
Anonymous
AHMED
I am learning c++ for embedded systems.
But I have my reasons to make android app using c++.
Anonymous
I am learning c++ for embedded systems.
But I have my reasons to make android app using c++.
Is suffering your creed?
AHMED
Hahaha
Diego
It's worth mentioning that, at least afaik, Android doesn't really natively support C++ apps
Android is based on the Linux Kernel, which is C and C++, but primarily The Android OS is Java
Anonymous
Anyone Need netflix account with 4 Screen Premium ultra HD auto renewal only for 100rs Dm me if you want to buy
Damo
Please can anyone suggest me you tube channel to learn kernel device driver
Nils
Please can anyone suggest me you tube channel to learn kernel device driver
No, it is not knowledge you find on youtube.
Ибраги́м
PO
HI,
If some one would like to transforme an array of int into a string, how would you do?
I made a function to convert each element of type int to char type and then I used this function inside a for loop to do that but I get a strange character when I print my string.
someone can help me 🙏🏻
Pavel
Why it's a bad idea by the way?
As far as I remember both Android Studio and Visual Studio support writing native apps using C++
I tried android studio with android NDK long time ago and it had some issues, but this still better than to write two different implementations for Android and ios
Anonymous
Why it's a bad idea by the way?
Because C++ is not a main language for Android development
Ahadu
Pavel
Because C++ is not a main language for Android development
That doesn't matter much as for today in my opinion, it's not limited to Java only right now
Anonymous
In Android apps it can be used for:
1. Writing main components for cross-platform apps — because the only language that is kinda native for every platform
2. Writing high performance parts of the app
Pavel
In Android apps it can be used for:
1. Writing main components for cross-platform apps — because the only language that is kinda native for every platform
2. Writing high performance parts of the app
Yes, you right, I was talking about the first point. UI specific stuff (front-end?) is better to be written in Java I think
Anonymous
That doesn't matter much as for today in my opinion, it's not limited to Java only right now
It does matter
Kotlin is the number one language for Android development. All new libraries and frameworks are developed for this language
Anonymous
Yes, you right, I was talking about the first point. UI specific stuff (front-end?) is better to be written in Java I think
https://gusc.lv/2021/03/how-to-use-c-for-cross-platform-development/
Related article
PO
/
* convert_Int_Char
* @pre: int > 0
* @post: converting a int to char
*/
static int convert_Int_char(int integer){
//assert(integer > 0);
char character = integer + '0';
return character;
}
/
* convert_Int_string
* @pre: array != NULL && seedSize > 0
* @post: converting and inserting a array into char string
*/
static void convert_Int_string(LFSR *ptr , char *string){
assert(ptr != NULL && string != NULL);
for(unsigned int i = 0; i < ptr->seedSize; i++){
string[i] = convert_Int_char(ptr->seed[i]);
}
}
PO
When i print my string after converting I get this [01101000010100010000�]
PO
i can't understand what is it this chracter
Nils
i can't understand what is it this chracter
Seems like there is some integer outside the range
Nils
As said just use sprintf instead.
Nils
my input is 01101000010100010000 inside an int array
And you are sure that your int array is fully initialised?
Mar!o
When i print my string after converting I get this [01101000010100010000�]
probably missing null terminator
PO
string[strlen(string)] = '\0';
I'm sorry but I can't undertand, what should i do with that?
Mar!o
I'm sorry but I can't undertand, what should i do with that?
do this at the end of your string conversion function
Nils
if I use sprint, will it work do you think?
Why not? It will also make your program work with integers higher than 9 😉
PO
do this at the end of your string conversion function
static void convert_Int_string(LFSR *ptr , char *string){
assert(ptr != NULL && string != NULL);
for(unsigned int i = 0; i < ptr->seedSize; i++){
string[i] = convert_Int_char(ptr->seed[i]);
string[strlen(string)] = '\0';
}
}
Doesn't work but i don't know if i use correctly or not
PO
Why not? It will also make your program work with integers higher than 9 😉
I shoud use isprint or sprint?
PO
sprintf
like that
sprintf(string, ptr->seedSize,"%d", ptr->seed[i]);
shouldn't give the string size?
Nils
like that
sprintf(string, ptr->seedSize,"%d", ptr->seed[i]);
shouldn't give the string size?
use snprintf if you need memory safety
Nils
sprintf(outstring, "%d", ptr->seed[0]);
PO
I fixed my code just by addding -1 in my loop
PO
❤️
Mar!o
static void convert_Int_string(LFSR *ptr , char *string){
assert(ptr != NULL && string != NULL);
for(unsigned int i = 0; i < ptr->seedSize; i++){
string[i] = convert_Int_char(ptr->seed[i]);
string[strlen(string)] = '\0';
}
}
Doesn't work but i don't know if i use correctly or not
you do not need to do it in the loop
only once at the end
PO
you do not need to do it in the loop
only once at the end
I use like that and i get this:
static int convert_Int_char(int integer){
//assert(integer > 0);
char character = integer + 48;
return character;
}
/**
* convert_Int_string
* @pre: array != NULL && seedSize > 0
* @post: converting and inserting a array into char string
*/
static void convert_Int_string(LFSR *ptr , char *string){
assert(ptr != NULL && string != NULL);
//unsigned int size = ptr->seedSize;
for(unsigned int i = 0; i < ptr->seedSize-1; i++){
string[i] = convert_Int_char(ptr->seed[i]);
}
ptr->seed[strlen(ptr->seed)] = '\0';
}
[0110100001010001000��]
H
i can't understand what is it this chracter
save it as file and check by hexeditor , it's better to debug.
Your
Can I learn to program websites and create pages from the phone like html
Nameful
Can I learn to program websites and create pages from the phone like html
I wouldn't recommend it
Your
It's tedious to write code on a phone
And this is off-topic
I do not have a computer. This is why I want to learn from the phone. If someone uses the phone, I want programs that can be used on the phone
Otumian
Can I learn to program websites and create pages from the phone like html
Yeah.. but it's.. how do I say it..
Otumian
armandofsanchez
I do not have a computer. This is why I want to learn from the phone. If someone uses the phone, I want programs that can be used on the phone
Yes...there are programs to install web servers on the phone..
Your
How to link html with another editor
klimi
Can I learn to program websites and create pages from the phone like html
Yes but do talk about c/c++ here only. Or move to offtopic group
Andrew
Just google it
Diego
Yes...there are programs to install web servers on the phone..
But a phone is usually far to weak to run a web server, even if for testing
It'd drain your battery too
Hanz
Supply me bro
Anonymous
Using nested loop and selection structure, print the following shape on the screen by
repeating printf(“%d”, x) where the value of x could be 0 or 1.
01010
01010
01010
01010
01010