fwrite problem

[tzoli]

I have a problem with fwrite.
This is my code:

Code: Select all

unsigned px = 0;
FILE *f = fopen("C:/ct.txt","r+");
fwrite(&px,"x",10,f);
fclose(f);


And the error:
Incompatible types:Cannot convert from "const * char" to "unsigned"
What can i do for fix it?

[savvy]

it means there something in there which isnt supposed to be, or that your missing a peice of info which seperates them, OR even that you have something splitting up something thats supposed to be together, but im not sure what. try rethinking the code from the start.

[Game A Gogo]

Actually, this just means you placed a variable that is a const*char (Constant string, a variable you declared that is a string) where an unsigned (An integer without negative values, I beleive...) should go

[Game A Gogo]

it would also be easier to help you, if you told us where this error happens (On which line? it always tells you thankfully!)

[Fuzzy]

What immediately stands out to me is that you used the wrong slash for windows and you should have escaped it.

FILE *f = fopen("C:\\ct.txt","r+");

Also, I wouldnt write to the root C folder like that. Put it in with your game.

FILE *f = fopen("C:\\somegame\\ct.txt","r+");

[tzoli]

Thanks.

[tzoli]

I have problem again

Code: Select all

int px = 0;
FILE * f = fopen("C:\\ct.txt","w");
fwrite(&px,1,1,f);
fclose(f);


Aren't errors but not write the file...

[makslane]

You can create files only inside the game folder.

[asmodeus]

You can create files only inside the game folder.

Why that? I don't understand it.

[makslane]

Security.

[asmodeus]

Security.

Okay, I see...
But you could make have possible to access files in sub directories, e.g. files from a "data" dir, being in the same dir as the game. Just not allowing for example "../" or "C:/".

[tzoli]

Okay...But can how can I write to file strings?
My codes doesn't running corectly.

[tzoli]

I have a problem whit my code:

Code: Select all

int px = 100;
FILE *f = fopen("ct.txt", "r+");
fwrite(&px, ymouse, sizeof(px), f);
fclose(f);


No errors but in the file wrote:

d `Ě
€°g €°g  °g €ăÇ
€°g €°g  °g °Č
 €°g  °g Xnż
s ˙˙˙˙ €ăÇ
H ř H ř L ř č‹Â
řÔÉ
¬ż
¬ż
čěÂ
ŕsż
ąĆ
ŕĘÉ
čüĂ
0şŔ
°cĚ
đ/É
đż
ČoČ

[Bee-Ant]

fwrite() would write text in binary code, if you want it to be "readable" use fprintf() instead.

Code: Select all

fprintf(f,"%d,",&ymouse);

[tzoli]

Thanks!It's run correctly