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Results tagged with data-structures
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user 101
For questions about the implementation or design of data structures as specifically relevant to programming language design or implementation. Generic data structure questions are off-topic.
3
votes
Would a structure ever require padding beyond what is required to align the members?
Consider:
typedef struct {
double d;
char c;
} S;
static S a[2];
The address of a[1] must be on a double boundary.
&a[1] is &a + sizeof(S).
Therefore sizeof(a[0]) must be a multiple of a dou …
- 1,295
5
votes
What are the implications of a 'packed' keyword/feature?
There's not really any need for this feature, and using it could cause performance issues (e.g. requiring extra memory fetches and realignment for each item, or even a memory fault).
In situations whe …
- 1,295