#include "helpers2.h"
#include "hw2_p1.h"
int contains(const char* str, const char c) {
    if (str == NULL || c == '\0'){
        return -1;
    }
    char* strPtr = str;
    int chCounter = 0;
    while (*strPtr != '\0'){
        if (*strPtr == c){
            chCounter++;
        }
        strPtr++;
    }
    return chCounter;
}

char* prefix(const char* str, const char* tokens) {
    if (str == NULL || tokens == NULL){
        return NULL;
    }
    char* strPtr = str;
    char* tokPtr = tokens;
    while (*strPtr != '\0'){
        int retFlag = 1;
        while (*tokPtr != '\0'){
            if (*tokPtr == *strPtr){
                retFlag = 0;
            }
            tokPtr++;
        }
        if (retFlag){
            return strPtr;
        }else{
            strPtr++;
            tokPtr = tokens;
        }
    }
}

int ics53atoi(const char *str) {
    char* strPtr = str;
    int place = 1;
    //we want to start at the end of the string
    if (*str == '-'){
        place = -1;
        strPtr++;
    }else if (*str == "\0"){
        errno = INTERR;
        return 0;
    }
    int out = 0;
    while( *strPtr != '\0'){
        int c = (int) ((*strPtr)-'0');
        //printf("%d\n", c);
        if ( c<0 || c > 9){
            errno = INTERR;
            //printf("RETURNING ZERO\n");
            return 0;
        }else{
            out *= 10;
            out += place * c;
            place *= 10;
        }

        strPtr++;
        place=place*10;
    }
    return out;

}

float ics53atof(const char *str) {
    float x = 1.1;
    return x;
    /*
    char* strPtr = str;
    int place = 1;
    float fplace = 1/10;
    //we want to start at the end of the string
    if (*str == '-'){
        place = -1;
        strPtr++;
    }else if (*str == "\0"){
        errno = INTERR;
        return 0;
    }
    float out = 0;
    int isDec = 0;
    while( *strPtr != '\0'){
        int c = (int) ((*strPtr)-'0');
        //printf("%d\n", c);
        if ((c<0 || c > 9){
            if (c==-2 && isDec == 0){
                isDec = 1;
            }else{
                errno = INTERR;
                return 0;
            }
        }else if (isDec){
            out += (float)(fplace * c);
            fplace = fplace/10;
        }
        else{
            out *= 10;
            out += (float)(place * c);
            place *= 10;
        }
        strPtr++;
    }
    return out;*/
}

char** getSubstrings(char *str, int *size) {
}

void printSubstrings(const char** sstrs, const int size) {
}