joeGrammar
Programmer
How come
#define blah 20
type var[blah];
compiles and
const int blah = 20;
type var[blah];
does not?
#define blah 20
type var[blah];
compiles and
const int blah = 20;
type var[blah];
does not?
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discrepancy
- Thread starter joeGrammar
- Start date
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classic773
Programmer
Ahhh, I've run into this problem a year or so before. Its not a problem. Its the fact that you can't dynamically declare the size of an array in this way. See thread116-107726
IonelBurtan
Programmer
Both situations compile.
First situation: blah is a define which means it is a preprocesor directive and the preprocessor makes the replacements and at compile time your code will look like type var[20]
Second situation - it compiles as long as you keep the const. Else the compiler will require a const values. Arrays cannot be dinamically redimensioned if they are not on the heap(constructed with new).
Hope this helps,
s-)
Blessed is he who in the name of justice and good will, shepards the week through the valley of darkness...
First situation: blah is a define which means it is a preprocesor directive and the preprocessor makes the replacements and at compile time your code will look like type var[20]
Second situation - it compiles as long as you keep the const. Else the compiler will require a const values. Arrays cannot be dinamically redimensioned if they are not on the heap(constructed with new).
Hope this helps,
s-)
Blessed is he who in the name of justice and good will, shepards the week through the valley of darkness...
- Status