ofstream File;
int StartPos[3];
x=20,y=15;
File.open("map.dat",ios::out | ios::binary);
File.seekp(0);
File.write((char*)StartPos, sizeof(StartPos));
StartPos[0]=File.tellp();
File.write((char*)x, sizeof(x));
StartPos[1]=File.tellp();
File.write((char*)y, sizeof(y));
StartPos[2]=File.tellp();
File.write((char*)map, sizeof(map));
File.seekp(0);
File.write((char*)StartPos, sizeof(StartPos));
File.close();
Binary File Output?
Author
hello there,
can anybody help me with writing some data into a binary file? here is the code i use:
While I''m not familiar with the C++ File IO methods, I suspect your problem is that it expects a pointer, you can''t cast a non-pointer into a pointer like you have:
(char *)x
you would have to go:
(char *)&x
but in those function calls, you could probably get away with:
&x
as the parameter.
-Mezz
(char *)x
you would have to go:
(char *)&x
but in those function calls, you could probably get away with:
&x
as the parameter.
-Mezz
Author
Ok I think that works, there is no error. but when i try to read the file, it reads the wrong data ...
do you know another method to write and read binary data?
do you know another method to write and read binary data?
This topic is closed to new replies.
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