Checkpoint: functions, arrays and pointers
Four problems on your own: walk a string with a pointer, return two answers through pointers, trace copies and addresses, and stop a runaway recursion.
- The skill
- Show you can use functions, arrays, strings and pointers without step-by-step help.
- You make
- A title-case fixer, a step tracker streak finder, a trace of copies and addresses, and a recursion that stops.
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Builds on 13 Pointer arithmetic. Free to try: C Foundations and the playground.
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exercise_1.c
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4 exercises in this lesson, checked as you type. Premium opens every lesson after Foundations, in all four courses.
C, 32-bit: int and pointers are 4 bytes