GCC / Clang C/C++ Compiler On Android Using Termux (Linux Environment)

gistfile1.txt

Install Termux App.
type "apt update"
Then We have to install a text editor to write our code so type "apt install vim" for vim text editor
or u can also use nano text editor for nano type "apt install nano"
Now Clang Installation type "apt install clang" and wait for download completes.
now to create a file simply type vim filename.c or .cpp or nano filename.c or cpp 
then u will able to write ur code . 
write.....to save ur code simply press esc then type ":wq"
now code is ready to compile 
type "clang filename.c -o filename"
If ur code is right then it will be compiled.
Else it will show error.fix it.
To run ur program simply type "./filename".
Tada...Done.




1. apt update
2. apt install vim or nano
3. apt install clang
4. vim/nano filename.
5. clang filename.c -o filename
6. ./filename

Hey, why does it say "Acces denied" when I run a file..?

Because you have ti set execute permissions on the new file:

chmod a+x filename

or

sudo chmod a+x filename

What about c++? How to compile?

What about c++? How to compile?

clang filename.cpp -o filename

I guess

clang++ filename.cpp -o filename

Hey please you said how to install GCC compiler in termux but that is clang. I prefer GCC

Hey please you said how to install GCC compiler in termux but that is clang. I prefer GCC

Gcc isn't available in termux pkgs
U have to deal with clang :V

I added termux repo with gcc 10.2.0 (with fortran)
there how to install it https://cctools.info/index.php/Termux_repository_with_cctools_packages_(gcc_with_fortran_support_etc)

I tried to run a file in c making simply
clang filename.c -o filename but it won't run

gcc filename.c -o filename

Can i install some header file by this like color.h etc....

Soo I'm here on this old thread.
I can't chmod a+x the file, it doesn't change anything. Device isn't rooted, so to execute files device needs to be rooted? Or otherwise how to execute a file since chmod isn't working.

Never mind, no need to chmod anything inside home directory of Termux, it runs fine and already is executable when compiled, but it doesn't work in other directories such as /sdcard which is probably a good thing :)

How to link libraries

Not working

What are the errors during installation or use?

Hi, letme check on the weekend, sorry

Binary files can't run on Internal Storage, only on termux home folder

You need move the output to ~/ and use chmod +x filename

Now GCC is available through its-pointless repo
pkg i gcc-11

What is the problem here????
For a few days it started to show this kind of message while compiling the code

@anik889 run pkg upgrade

@AhaomaMichael type
apt update && apt upgrade
apt install clang
clang++ UserAge.cpp -o UserAge
./UserAge

@AhaomaMichael type apt update && apt upgrade apt install clang clang++ UserAge.cpp -o UserAge ./UserAge

apt update && apt upgrade - Had couple of errors.
apt install clang - This returned an error "Unable to locate clang"

Any help would be highly appreciated. Thanks.

@AhaomaMichael type apt update && apt upgrade apt install clang clang++ UserAge.cpp -o UserAge ./UserAge

apt update && apt upgrade - Had couple of errors. apt install clang - This returned an error "Unable to locate clang"
Any help would be highly appreciated. Thanks.

pkg up && pkg upg
pkg i build-essential

Thanks so much. The fault was actually from me. I was using the playstore version.
Am still very new in the tech space :)
Thanks for the support.

It's not considering iostream header file and conio file

Working fine for everything else but not working for this short prime number code.

//GNU nano 7.2 004prime.c
#include<stdio.h>
int main(){
int a,b;
printf("enter the number to check prime : ");
scanf("%d\n",&a);
for(b=2;b<=a-1;b++){
if(a%b==0){
printf("%d is not a prime",a);
break;}}
if (b==a){
printf("%d is a prime\n",a);}
return 0;}

Permission denied

~/.../Download/CodingC $ ./a.out
bash: ./a.out: Permission denied
~/.../Download/CodingC $

Soo I'm here on this old thread. I can't chmod a+x the file, it doesn't change anything. Device isn't rooted, so to execute files device needs to be rooted? Or otherwise how to execute a file since chmod isn't working.

The shared storage is mounted with noexec
copy the file to $HOME to chmod +x

Are you sure installing clang will give you GCC? Clang is the name of the LLVM C compiler. LLVM is a competitor to GCC.

Are you sure installing clang will give you GCC? Clang is the name of the LLVM C compiler. LLVM is a competitor to GCC.

This is 7yr old post mate, I didn't even know a shit 7yrs ago, anyway it should run a C code fr ;)

Are you sure installing clang will give you GCC? Clang is the name of the LLVM C compiler. LLVM is a competitor to GCC.

This is 7yr old post mate, I didn't even shit 7yrs ago, anyway it should run a C code fr ;)

If you want to install GCC on Termux, here's how you can do it...

pkg install tur-repo
pkg install gcc-14 gcc-default-14

That's it. Now you can use GCC to compile code. So instead of "clang filename.c -o filename" you would run "gcc filename.c -o filename".

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <termios.h>
#include <fcntl.h>
#include <time.h>

int kbhit(void) {
struct termios oldt, newt;
int ch;
int oldf;

tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
newt.c_lflag &= ~(ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
oldf = fcntl(STDIN_FILENO, F_GETFL, 0);
fcntl(STDIN_FILENO, F_SETFL, oldf | O_NONBLOCK);

ch = getchar();

tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
fcntl(STDIN_FILENO, F_SETFL, oldf);

if (ch != EOF) {
    ungetc(ch, stdin);
    return 1;
}

return 0;

}

int getch() {
struct termios oldt, newt;
int ch;
tcgetattr(STDIN_FILENO, &oldt);
newt = oldt;
newt.c_lflag &= ~(ICANON | ECHO);
tcsetattr(STDIN_FILENO, TCSANOW, &newt);
ch = getchar();
tcsetattr(STDIN_FILENO, TCSANOW, &oldt);
return ch;
}

int width = 20, height = 20;
int x, y, fruitX, fruitY, score;
int tailX[100], tailY[100];
int nTail;
int gameOver;

enum direction {STOP = 0, LEFT, RIGHT, UP, DOWN};
enum direction dir;

void Draw() {
system("clear");

for (int i = 0; i < width + 2; i++) printf("#");
printf("\n");

for (int i = 0; i < height; i++) {
    for (int j = 0; j < width; j++) {
        if (j == 0) printf("#");

        if (i == y && j == x)
            printf("O");
        else if (i == fruitY && j == fruitX)
            printf("F");
        else {
            int printTail = 0;
            for (int k = 0; k < nTail; k++) {
                if (tailX[k] == j && tailY[k] == i) {
                    printf("o");
                    printTail = 1;
                }
            }
            if (!printTail) printf(" ");
        }

        if (j == width - 1) printf("#");
    }
    printf("\n");
}

for (int i = 0; i < width + 2; i++) printf("#");
printf("\nScore: %d\n", score);
printf("Use W A S D to Move | X to Exit\n");

}

void Setup() {
gameOver = 0;
dir = STOP;
x = width / 2;
y = height / 2;
srand(time(0));
fruitX = rand() % width;
fruitY = rand() % height;
score = 0;
}

void Input() {
if (kbhit()) {
switch (getch()) {
case 'a': dir = LEFT; break;
case 'd': dir = RIGHT; break;
case 'w': dir = UP; break;
case 's': dir = DOWN; break;
case 'x': gameOver = 1; break;
}
}
}

void Logic() {
int prevX = tailX[0];
int prevY = tailY[0];
int prev2X, prev2Y;
tailX[0] = x;
tailY[0] = y;

for (int i = 1; i < nTail; i++) {
    prev2X = tailX[i];
    prev2Y = tailY[i];
    tailX[i] = prevX;
    tailY[i] = prevY;
    prevX = prev2X;
    prevY = prev2Y;
}

if (dir == LEFT) x--;
else if (dir == RIGHT) x++;
else if (dir == UP) y--;
else if (dir == DOWN) y++;

if (x >= width) x = 0; else if (x < 0) x = width - 1;
if (y >= height) y = 0; else if (y < 0) y = height - 1;

for (int i = 0; i < nTail; i++)
    if (tailX[i] == x && tailY[i] == y)
        gameOver = 1;

if (x == fruitX && y == fruitY) {
    score += 10;
    fruitX = rand() % width;
    fruitY = rand() % height;
    nTail++;
}

}

int main() {
Setup();
while (!gameOver) {
Draw();
Input();
Logic();
usleep(150000);
}
printf("Game Over! Final Score = %d\n", score);
return 0;
}