Supposed to swap every two lines in a file until just one line remains or all lines are exhausted. I don't want to use another file in doing so. Here's my code: #include <stdio.h> int main...

What is the difference between ftello/fseeko and fgetpos/fsetpos? Both seem to be file pointer getting/setting functions that use opaque offset types to sometimes allow 64 bit offsets. Are they sup...

The code currently does this and the fgetpos does handle files larger than 4GB but the seek returns an error, so any idea how to seek to the end of a file > 4GB? fpos_t currentpos; sok=fseek(f...