I wonder if it is possible to use map in C. I know it works in C ++, but in C it always gives compilation error. If someone has already used map in C, could you show me how to use it?
#include <map>
#include <stdio.h>
int main()
{
map<int, char[10]> m;
m[1] = "Um";
m[2] = "Dois";
m[4] = "quatro";
printf(m[4]); // não sei se precisa de mascara de dados
}
Does not work in C language. The map is a C ++ language resource ( details here ), a instead of using resources that are not found in C and are characteristic of object orientation.
What you can do is find some library that performs a similar function in C.
Some maps work perfectly with an array! In relation to your example,
#include <stdio.h>
int main(){
char * m[20];
m[1] = "Um";
m[2] = "Dois";
m[4] = "quatro";
printf("%s\n", m[4]);
}
works perfectly.
If your indexes are more complex (example strings, etc.) you can use Map implanted with:
man hsearch ) man tsearch ) man lsearch ) go to richer libraries like
or until you go to C ++ (boost, etc)
As already suggested, it is best to implement your map structure in this case. I can recommend using hash table and use dessa lib for C.
Take a look at in this article that explains about hash table .