How to write a full string to a file?

Question

I'm programming in Windows right now, but portable code would be welcomed too.

What I'm using right now is fwrite(4), but this function needs a maximum number of elements to be written to the file. I can use strlen(1) here but I'd like to know if there is any better way to do this.

Answer 1

Use fputs instead:

FILE * f = fopen( "myfile.txt", "w" );
fputs( "Hello world\n", f );