🚀 go-pugleaf

rollins@bart.ee.queensu.ca (Mark Rollins) writes:


|PROBLEM DELETING A VECTOR OF CLASS OBJECTS
|------------------------------------------

|Using the syntax of Stroustrup's 1st edition, pg. 162
|and g++ version 2.2.2, libg++ version 2.1, and SunOS 4.2.2 I get
|correct results but a compiler warning:

|   g++ -o bin/junk badmem.cc -lg++ -lm
|   badmem.cc: In method `Vector::~Vector ()':
|   badmem.cc:9: warning: use of array size with vector delete is anachronistic

|If I omit the array size, the Vector does not get de-allocated
|properly using the destructor, and all virtual memory gets eaten up
|rather quickly. (It's probably just deleting the 1st one in the array).

|What is the proper syntax for deleting a vector of class objects ?
|Or is there any way to turn off this annoying warning flag ?

|-----------------------------------------------------------------
|Working version that produces a warning:
|-----------------------------------------------------------------
|  ~Vector() { delete [size] v;}

|-----------------------------------------------------------------
|Buggy version that quickly uses up all virtual memory:
|  (difference is in the ~Vector() destructor)
|-----------------------------------------------------------------
|  ~Vector() { delete v;}

The correct syntax is "delete [] v;"  The 'size' parameter is an
anachronism, but the brackets are not!


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