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Arrays

how can shift element of array from one array to another
eg
Expand|Select|Wrap|Line Numbers
  1. array1[] = {3,4,2,5}
  2. array2[] = {7,8,9,3,4}
  3.  
i want to shift fist element of array1 to the least element to array2
e.g
Expand|Select|Wrap|Line Numbers
  1. array1[] = {4,2,5,7}
  2. array2[] = {8,9,3,4,3}
  3.  
Jan 1 '14 #1
3 1152
weaknessforcats
9,208 Expert Mod 8TB
This will be hard because you don't really have an array you can change.

array1[] does not give you an array. What this is, is a pointer to a one dimension array. The {4,2,5,7} are integers that are constant. Also missing is the type of the pointer, like an int.

Change the code to:

Expand|Select|Wrap|Line Numbers
  1. int array1[4] = {3,4,2,5}
  2. int array2[5] = {7,8,9,3,4}
  3.  
Now this defines array1 as an array of 4 ints with initial values of 3,4,2,5. Since this is your array, you are allowed t change the values of the elements.
Jan 1 '14 #2
donbock
2,426 Expert 2GB
@weaknessforcats: omitting the array size in an initializer is allowed in C (don't know about C++). In C, this means that the array size is implied -- it will match the initializer.
Jan 3 '14 #3
weaknessforcats
9,208 Expert Mod 8TB
You're correct. I slipped up there. However you do need to have the array type:

Expand|Select|Wrap|Line Numbers
  1. int array1[] = {3,4,2,5};
  2. int array2[5] = {7,8,9,3,4};
  3.  
Jan 3 '14 #4

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