If you make a null-terminated string, then call printf() on it, will the null character cause a gap at the end of it?
What happens if you call printf() and the string isn't null-terminated?
If you make a null-terminated string, then call printf() on it, will the null character cause a gap at the end of it?
What happens if you call printf() and the string isn't null-terminated?
Not sure what you mean by causing gap at end, but the printf() will not print the NULL explicity, it just prints upto NULL.Originally Posted by Tom_Arch
Depending on what's there next to your string in memory, it might print junk or bail out with overflow.
No, it will not since the null terminator is not printed.
Undefined behaviour unless you also specify a precision that is less than the number of characters in the array. Note that without a null terminator, it is not a string, by standard definition.
EDIT:
From context and in text, Tom_Arch is talking about a null character, not NULL.
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What's the difference?
NULL is a macro for a null pointer constant. Although in terms of integer value they are equal and may even have the same type, the null character clearly is not (at least semantically) a null pointer constant.
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