C++ difference between "char *" and "char * = new char[]"
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nashmaniac
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Published on 2012-11-25T08:06:02Z
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2012/11/25
11:22 UTC
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So, if I want to declare an array of characters I can go this way
char a[2];
char * a ;
char * a = new char[2];
Ignoring the first declaration, the other two use pointers. As far as I know the third declaration is stored in heap and is freed using the delete operator . does the second declaration also hold the array in heap ? Does it mean that if something is stored in heap and not freed can be used anywhere in a file like a variable with file linkage ? I tried both third and second declaration in one function and then using the variable in another but it didn't work, why ? Are there any other differences between the second and third declarations ?
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