map question

[mickey]

my problem probabily was another:

map<int, Light> lightmap;
lightmap[3] = light();
lightmap[4] = light();.
lightmap[5] = light();
int i = lightmap.size();
printf("ADDING LIGHT dimensione <map> %i\n" ,i); "ADDING LIGHT dimensione <map> %i\n" ,i); //this should print 3

map<int, Light> lightmap;
lightmap[3] = light();
lightmap[4] = light();.
lightmap[5] = light();
int i = lightmap.size();
printf("ADDING LIGHT dimensione <map> %i\n" ,i); "ADDING LIGHT dimensione <map> %i\n" ,i); //this should print 3

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now I need to to a thing (but I dont know how):

int size = lightmap.size();
for (int i=0; i<size; i++) {
 lightmap[i].DOSomething();
}

int size = lightmap.size();
for (int i=0; i<size; i++) {
 lightmap[i].DOSomething();
}

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here above I need to put in a for a my Light class function; but the for is working on elements 0,1,2; I need to use map with KEY 3,4,5 (they're iserted before).
Are u understand? thanks