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Message: [QUOTE="Ian Collins, post: 4139344"] On 10/ 6/10 02:41 AM, steve wrote: It looks like you are trying to build a heterogeneous container. Have you considered an array of unions? Something like: typedef enum { Int, Double, String } MemberType; typedef struct { union { int intItem; double doubleItem; char* stringItem; } member; MemberType type; } Array; int main(int argc, char *argv[]) { Array array[2]; array[0].member.intItem = 42; array[0].type = Int; array[1].member.intItem = 42.42; array[1].type = Double; return 0; } [/QUOTE]