buffertest.c

#include <stdio.h>char ringbuffer[9][9]; //char matrix with size for 10char stringschar myc1 ='h';char myc2 ='w';int nextToPut=0;int nextToGet=0;int nbrOfElements=0;void put(char c){        int pos=0;        if(c!='\0'){                ringbuffer[nextToPut][pos]=c;                pos++;                nextToPut++;        }}char* get(void){        int pos=0;        if(nextToGet>0)                if(ringbuffer[nextToGet]!=NULL){                        nextToGet--;                        return ringbuffer[nextToGet];                }}int main(){        char* pChar;        int i=0;        put(myc1);        pChar=get();        printf("char is :%s\n",pChar);}Output:char is :(null)