1) getchar must be a function in that case . Check /usr/include/stdio.h . It must have contained an extern definition (it is on my machine).
2) Machines generally have separate registers for floating point values(let say %fr). While executing this line *printf("%d\n",t); *that register is loaded with the value of* "t" *but this call to printf will not access it because of* "%d" *specifier* . *Since then the value in this register has not been replaced, therefore call to printf with* "%f" *specifier will access* %fr *register and print its value.* * -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/c88zZWRmRvIJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.