Consider the following C code snippet:
char *sentence = NULL;
strcpy(sentence, "Helloworld");
printf("%s", sentence); is the code segment correct or error.
If correct what is the output?
- Error
- Helloworld
- NuII,Helloworld
- None of the above
Prasad_4
0
Newbie Poster
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Jump to PostThis is clearly a homework or interview question, so please let us know what your thoughts are first.
Jump to PostThe pointer just points to NULL. It has no storage space. you need to allocate space. You could use strdup to do that. IE,
sentence = strdup("helloworld");strdup will allocate space for the string (including terminating NUL character) and copy the string to the newly allocated space that "sentence" now …
All 5 Replies
deceptikon
1,790
Code Sniper
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This is clearly a homework or interview question, so please let us know what your thoughts are first.
Reverend Jim
4,780
Hi, I'm Jim, one of DaniWeb's moderators.
Moderator
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Why don't you just try it and see for yourself?
Prasad_4
0
Newbie Poster
i tried. it says runtime error
rubberman
1,355
Nearly a Posting Virtuoso
Featured Poster
The pointer just points to NULL. It has no storage space. you need to allocate space. You could use strdup to do that. IE, sentence = strdup("helloworld"); strdup will allocate space for the string (including terminating NUL character) and copy the string to the newly allocated space that "sentence" now owns.
Reverend Jim
4,780
Hi, I'm Jim, one of DaniWeb's moderators.
Moderator
Featured Poster
i tried. it says runtime error
Then you have your answer. Wouldn't that have been easier than asking us to do your work for you?
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