7. | Point out the error in the program? |
| A. | Error: cannot convert ptr const value |
| B. | Error: unknown pointer conversion |
| C. | No error |
| D. | None of above |
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| Answer: Option A |
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| Explanation: |
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Step 1: char mybuf[] = "India"; The variable mybuff is declared as an array of characters and initialized with string "India".
Step 2: char yourbuf[] = "BIX"; The variable yourbuf is declared as an array of characters and initialized with string "BIX".
Step 3: char const *ptr = mybuf; Here, ptr is a constant pointer, which points at a char.
The value at which ptr it points is a constant; it will be an error to modify the pointed character; There will not be any error to modify the pointer itself.
Step 4: *ptr = 'a'; Here, we are changing the value of ptr, this will result in the error "cannot modify a const object". |
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Tutorial Link: |
Published by:Michael Daani
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