I am reading the C programming textbook by Dennis Ritchie and Brian Kernighan. I finished the first chapter and stumbled across these questions that I'm not sure I'm interpreting correctly. Specifically, in Exercise 1-20, what does the authors mean when they say "Assume a fixed set of tab stops, say every n columns." I am also only trying to use the content presented in chapter 1 which includes: simple arrays, functions, symbolic constants, getchar(), putchar() and printf().
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It means that you should convert each tab (
'\t', or0x09on ASCII-based machines) into a non-zero number of spaces that brings the cursor to the next multiple of n.For example,
Input:
Output: (The ruler is just for reference)