kphmd's blog

foreach(item,sets) with g++
By kphmd, 14 years ago, In English
#define foreach(ite,sets) for(__typedef(sets.begin()) ite=sets.begin();ite!=sets.end();ite++)
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14 years ago, # |
  Vote: I like it +11 Vote: I do not like it
No.

STL for_each
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14 years ago, # |
  Vote: I like it +10 Vote: I do not like it
Do people enjoy living in the past? Why do you need a macro for something which has been part of the language for a while now?

int my_array[5] = {1, 2, 3, 4, 5};
for (int &x: my_array) {
    x *= 2;
}


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14 years ago, # |
← Rev. 2   Vote: I like it 0 Vote: I do not like it

If one feels necessity of such constructions, may be it is time to change to java?

Surely there are far more languages, I just suppose that java syntax would not be radically new to C++ programmer and performance decrease would not be radical too... Note that I am not against C++ (I use it for more than 10 years already), but sometimes I feel that there is too much plus-pluses for one poor programmer... ;-)
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  • 14 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it
    Remember that such constructions are read-only in Java
    int[] a = {1, 2, 3, 4, 5};
    for (int x : a) {
        x *= 2; // actually elements of array don't change
    }
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    • 14 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it
      only for primitive types
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      • 14 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it
        For referenced objects their links would also be constant, therefore it is true for all referenced constant types (String, Integer etc.)...
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