Anyone know how to program in C??

[dux]

this is a cry for help

[OnCloud9]

Yes! I'm in the bus right now but I'll try to help 

[Romeo]

Yes

i had to learn for one of my classes lol

[dux]

Yes! I'm in the bus right now but I'll try to help 

thank you sooo much!! i dont even know what i dont know lmao

[dux]

Yes

i had to learn for one of my classes lol

do you know about structures and arrays? and passing them into functions?? my program runs but i dont know why it wont work properly

[Romeo]

do you know about structures and arrays? and passing them into functions?? my program runs but i dont know why it wont work properly

 

Yeah

Are you passing a pointer to the array or are you passing the array? And what are you trying to do exactly

[Go do your homework]

post your code. let's see

[dux]

Yeah

Are you passing a pointer to the array or are you passing the array? And what are you trying to do exactly

 

 

post your code. let's see

is putting an '&' before the variable name enough of a pointer? pointer variables will be my undong i swear

my code is messy so i dialled it way back and this is the logic im trying to use that wont work:

 

#include <stdio.h>

 

void main()

{

    double numbers[]= {1,2,3,4};

    void printNumbers(numbers);

}

 

 

void printNumbers(double no[])

{

    printf("%f and %f and %f and %f", no[0], no[1], no[2], no[3]);

}

[Romeo]

 

is putting an '&' before the variable name enough of a pointer? pointer variables will be my undong i swear

my code is messy so i dialled it way back and this is the logic im trying to use that wont work:

 

#include <stdio.h>

 

void main()

{

    double numbers[]= {1,2,3,4};

    void printNumbers(numbers);

}

 

 

void printNumbers(double no[])

{

    printf("%f and %f and %f and %f", no[0], no[1], no[2], no[3]);

}

 

 

Do you have to make a separate print method? I feel like it'd just be a lot easier to do it in main

Is there are reason you are using double over int? just curious because your example only has ints lol

 

Anyway those questions are irrelevant main should return an int. just put return 0 at the end of your main. I feel like that's your only problem lol

 

edit: idk if i made myself clear but main should be

 

int main(){

~code~

 

return 0;

}

 

oh and also get rid of the void before calling printNumbers function

[dux]

Do you have to make a separate print method? I feel like it'd just be a lot easier to do it in main

Is there are reason you are using double over int? just curious because your example only has ints lol

 

Anyway those questions are irrelevant main should return an int. just put return 0 at the end of your main. I feel like that's your only problem lol

yeah its required for the assignment loool if it wasnt id be so over this

and my numbers are meant to be doubles but i changed the values for simplicitys sake

this is what happens when i execute it:

 

Process returned 1 (0x1)   execution time : 0.350 s

Press any key to continue.

 

like nothing even shows up but that message? is the "returned 1" the way of saying somethings wrong?

[Romeo]

 

yeah its required for the assignment loool if it wasnt id be so over this

and my numbers are meant to be doubles but i changed the values for simplicitys sake

this is what happens when i execute it:

 

Process returned 1 (0x1)   execution time : 0.350 s

Press any key to continue.

 

like nothing even shows up but that message? is the "returned 1" the way of saying somethings wrong?

 

 

Sorry i edited, in your code get rid of the void so like

int main()

{

    double numbers[]= {1,2,3,4};

    printNumbers(numbers);

return 0;

}

 

You need the void when writing your function not calling it since that's just specifying the return type

[dux]

Sorry i edited, in your code get rid of the void so like

 

You need the void when writing your function not calling it since that's just specifying the return type

still broke :'(((

should i try using pointers?

[Romeo]

still broke :'(((

should i try using pointers?

 

how weird i literally wrote out the code myself and it works fine lol did you include the right libraries?

like 

 

#include<stdio.h>

 

Here's mine it's literally the same as yours (you shouldn't need stdlib.h i just always include out of habit)

[sammydee]

 

is putting an '&' before the variable name enough of a pointer? pointer variables will be my undong i swear

my code is messy so i dialled it way back and this is the logic im trying to use that wont work:

 

#include <stdio.h>

 

void main()

{

double numbers[]= {1,2,3,4};

void printNumbers(numbers);

}

 

 

void printNumbers(double no[])

{

printf("%f and %f and %f and %f", no[0], no[1], no[2], no[3]);

}

Remove that void

[Go do your homework]

 

#include <stdio.h> void main(){    double numbers[]= {1,2,3,4};    void printNumbers(numbers);}  void printNumbers(double no[]){    printf("%f and %f and %f and %f", no[0], no[1], no[2], no[3]);}

 

two issues

 

1. you should declare the function printNumber before any use in the main function. Implicit declaration results in an error in C99, and a warning in C11. In addition, this implicit declaration here results in a type conflict error, which is the reason you code won't compile.

 

2. as pointed out by Romeo, you cannot precede a function call by a type (void in this case). This is a syntax error in any C standard.

 

 

once you fix these two there won't be any error or warning

[dux]

Sorry i edited, in your code get rid of the void so like

 

You need the void when writing your function not calling it since that's just specifying the return type

WAIT yes IT WORKED TYSMMM OMG

[Go do your homework]

Ooops. I forgot another.

 

This was also mentioned above. The main function should return an int instead of void. This isn't an error, so you code will compile and run, but it results in a compiler warning.

[dux]

how weird i literally wrote out the code myself and it works fine lol did you include the right libraries?

like 

 

#include<stdio.h>

 

Here's mine it's literally the same as yours (you shouldn't need stdlib.h i just always include out of habit)

im so stupid i didnt remove the void

 

Remove that void

 

 

two issues

 

1. you should declare the function printNumber before any use in the main function. Implicit declaration results in an error in C99, and a warning in C11. In addition, this implicit declaration here results in a type conflict error, which is the reason you code won't compile.

 

2. as pointed out by Romeo, you cannot precede a function call by a type (void in this case). This is a syntax error in any C standard.

 

 

once you fix these two there won't be any error or warning

thank youuu coding messiahs

 

this is closer to my real code and this wont even run. like it just crashes

 

 

 

[size=4][background=#ffffff]#inclu[/size][/background]de <stdio.h>#include <math.h>typedef struct{    char *name;    double u, m0, q; //initial velocity, initial mass, fuel consumption rate} ROCKET;void main(){    ROCKET rockets[2] = { {"Rocket 1", 2000.0, 150000.0, 2700.0}, {"Rocket 2", 1596.0, 300000.0, 5367.0} };    selectRocket(rockets);}void selectRocket(ROCKET are[]){    int rocketNo;    printf("%s: u = %f m0 = %f q = %f\n", are[0].name, are[0].u, are[0].m0, are[0].q);    printf("%s: u = %f m0 = %f q = %f\n", are[1].name, are[1].u, are[1].m0, are[1].q);       printf("Select a Rocket from 1 to 4: ");}

wait wtf i changed some things it finally worked. its still crashing tho??

[Go do your homework]

 

#include <stdio.h>#include <math.h>typedef struct{    char *name;    double u, m0, q; //initial velocity, initial mass, fuel consumption rate} ROCKET;void main(){    ROCKET rockets[2] = { {"Rocket 1", 2000.0, 150000.0, 2700.0}, {"Rocket 2", 1596.0, 300000.0, 5367.0} };    selectRocket();}void selectRocket(ROCKET are[]){    int rocketNo;    printf("%s: u = %f m0 = %f q = %f\n", are[0].name, are[0].u, are[0].m0, are[0].q);    printf("%s: u = %f m0 = %f q = %f\n", are[1].name, are[1].u, are[1].m0, are[1].q);    printf("%s: u = %f m0 = %f q = %f\n", are[2].name, are[2].u, are[2].m0, are[2].q);    printf("%s: u = %f m0 = %f q = %f\n", are[3].name, are[3].u, are[3].m0, are[3].q);    printf("Select a Rocket from 1 to 4: ");}

 

1. again, implicit declaration of selectRocket results in a type conflict error. Declare it explicitly before the use in main

 

2. the argument list of your function call selectRocket() on line 15 doesn't match that of the declaration. This is a syntax error. But I suppose this is a typo and you meant selectRocket(rockets)

 

other than the above there are no more errors

 

3. again, main should return an int instead of void. This results in a warning.

 

4. the variable rocketNo on line 20 is declared but not used. This results in another compiler warning.

 

other than the above there are no more warnings

[dux]

1. again, implicit declaration of selectRocket results in a type conflict error. Declare it explicitly before the use in main

 

2. the argument list of your function call selectRocket() on line 15 doesn't match that of the declaration. This is a syntax error. But I suppose this is a typo and you meant selectRocket(rockets)

 

other than the above there are no more errors

 

3. again, main should return an int instead of void. This results in a warning.

 

4. the variable rocketNo on line 20 is declared but not used. This results in another compiler warning.

 

other than the above there are no more warnings

YES thanks!! it finally works but it crashes after execution lmao. idk whats up with that fixed it

im sorry to bother you thanks for all the help appreciate it so much

[dux]

 

 

 

ok my whole code (so far) is working now im about to cry thank you guys sososos much!! ive been at it for 3 hours now and it finally works ill send you won or smth

[Go do your homework]

ok my whole code (so far) is working now im about to cry thank you guys sososos much!! ive been at it for 3 hours now and it finally works ill send you won or smth

lmaoo no prob, that's not necessary but actually some upvotes would be nice (≖ᴗ≖๑)