Can anyone tell me how is memory allocated for an array of structure? For example, If I have a structure like this:
typedef struct particle { /* Each particle is defined in a struct */
short q; /* charge */
float xPos; /* x position */
float yPos; /* y position */
}PARTICLE;
and in the main fuction I declare an array of this struct:
PARTICLE e_p [N];
How would the program store this array of particles in the memory? Thanks for help.
a short is two bytes
a float is four bytes
so your struct would be 10 bytes long per N structs
Got it, Thanks a lot.
Assuming there is no padding...Originally posted by ygfperson
a short is two bytes
a float is four bytes
so your struct would be 10 bytes long per N structs
Quzah.
Hope is the first step on the road to disappointment.
To complete what quzah mentionned. According to my very recently acquired knowledge, on a 32 bit proc, as is, your second member will be aligned to the fourth byte:
q size: 2, relative offset: 0
xPos size: 4, relative offset: 4
yPos size: 4, relative offset: 8
total size of the structure : 12
