Programming :: STL Container Into A C Struct

I have an old C application in which i am trying to include some STL cointainers. When i use the STL container alone it works fine, but when i include it into a C struct i have segmentation faults errors. I know that it is not a good idea to mix C and C++. Considering this code:

Code:

typedef struct{
int shmid;
...
APPLSPACETYPE applSpace;

[code]...

and how to make a malloc for this issue; something like :

Code:

mem->applSpace.rData.completeGroups2zeroGroup=(map_completeGroups2zeroGroup_type *)malloc((sizeof(map_completeGroups2zeroGroup_type)+1)* sizeof(char ));