append_item_in_a_array.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef enum {
    STATE_start, //0
    STATE_num1, //1
    STATE_num2, //2
    STATE_num3, //3
    STATE_num4, //4
    STATE_id1, //5
    STATE_id2, //6
    STATE_op, //7
    STATE_end //8
} ParserState;
struct token_pair{
char *pair[2];
};

char * input = "2+2 = 4";


// input = "2+2*a=4"
/*
// out_put = {{"NUM","2"},{"OP","+"},{"NUM","2"},{"OP","*"},{"ID","a"},{"OP","="},{"NUM","4"}}
struct token_pair[] tokenize(char * input){
}
*/

int* int_append(int* array, size_t array_size, int a){
    int * ret;
    ret = malloc((array_size+1)*sizeof(int));
    ret=array;
    ret[array_size] = a;
for (int i=0;i<array_size+1;i++)
    {
    printf("%d",ret[i]);
    }
    return ret;
}


int main(void){
int c[] = {1,5,3,4,2,7,8,9};
int_append(c,sizeof(c)/sizeof(int),6);

return 0;
}