[C] Function get number from string (before and after ',')

// Function: Convert 'float number' as type string to integer and float type.
// How to use: Create 2 int number and 1 array char type has number from 0 - 9 and ',' symbol.
// Set 2 int number by call function: floatFromStringToInt(variable name of type char, int for int, int for float)
// After call function, your variable will have value before ',' and after ','.

// Hàm lấy phần nguyên và phần thực của số dạng chuỗi ký tự.
// Cách dùng: Khai báo 2 biến thuộc kiểu số nguyên, 1 chuỗi ký tự.
// Gọi hàm bằng cách: floatFromStringtoInt(chuỗi ký tự vào, số nguyên thứ 1, số nguyên thứ 2)
// Sau khi gọi hàm, số nguyên thứ nhất sẽ lấy được phần nguyên (trước dấu ','), số nguyên thứ 2 sẽ lấy giá trị sau dấu ','.

void floatFromStringtoInt(char *charNumber, int *soNguyen, int *thapPhan) {
    char resultSoNguyen[30], resultThapPhan[30];
    int iLoop, iLength, iResult, iForThapPhan, intResultSoNguyen, intResultThapPhan;

    iLength = (int) strlen(charNumber);

    for (iLoop = 0; iLoop < iLength; iLoop++) {
        resultSoNguyen[iLoop] = charNumber[iLoop];
        if (charNumber[iLoop + 1] == ',') {
            iResult = iLoop;
            break;
        }
        if (charNumber[iLoop + 1] == '\0') {
            iResult = iLoop;
            break;
        }
    }
    resultSoNguyen[iResult + 1] = '\0';

    iForThapPhan = 0;
    for (iLoop = iResult + 2; iLoop < iLength; iLoop++) {
        resultThapPhan[iForThapPhan] = charNumber[iLoop];
        iForThapPhan++;
    }

    resultThapPhan[iForThapPhan] = '\0';

    if ((int)strlen(resultThapPhan) == 0) {
        resultThapPhan[0] = '0';
        resultThapPhan[1] = '\0';
    }


    iLength = (int) strlen(resultSoNguyen);
    intResultSoNguyen = 0;
    for (iLoop = 0; iLoop < iLength; iLoop++) {
        switch (resultSoNguyen[iLoop]) {
            case '0':
                intResultSoNguyen = (intResultSoNguyen * 10) + 0;
                break;
            case '1':
                intResultSoNguyen= (intResultSoNguyen * 10) + 1;
                break;
            case '2':
                intResultSoNguyen = (intResultSoNguyen * 10) + 2;
                break;
            case '3':
                intResultSoNguyen = (intResultSoNguyen * 10) + 3;
                break;
            case '4':
                intResultSoNguyen = (intResultSoNguyen * 10) + 4;
                break;
            case '5':
                intResultSoNguyen = (intResultSoNguyen * 10) + 5;
                break;
            case '6':
                intResultSoNguyen = (intResultSoNguyen * 10) + 6;
                break;
            case '7':
                intResultSoNguyen = (intResultSoNguyen * 10) + 7;
                break;
            case '8':
                intResultSoNguyen = (intResultSoNguyen * 10) + 8;
                break;
            case '9':
                intResultSoNguyen = (intResultSoNguyen * 10) + 9;
                break;

            default:
                break;
        }
    }

    iLength = (int) strlen(resultThapPhan);
    intResultThapPhan = 0;
    for (iLoop = 0; iLoop < iLength; iLoop++) {
        switch (resultThapPhan[iLoop]) {
            case '0':
                intResultThapPhan = (intResultThapPhan * 10) + 0;
                break;
            case '1':
                intResultThapPhan = (intResultThapPhan * 10) + 1;
                break;
            case '2':
                intResultThapPhan = (intResultThapPhan * 10) + 2;
                break;
            case '3':
                intResultThapPhan = (intResultThapPhan * 10) + 3;
                break;
            case '4':
                intResultThapPhan = (intResultThapPhan * 10) + 4;
                break;
            case '5':
                intResultThapPhan = (intResultThapPhan * 10) + 5;
                break;
            case '6':
                intResultThapPhan = (intResultThapPhan * 10) + 6;
                break;
            case '7':
                intResultThapPhan = (intResultThapPhan * 10) + 7;
                break;
            case '8':
                intResultThapPhan = (intResultThapPhan * 10) + 8;
                break;
            case '9':
                intResultThapPhan = (intResultThapPhan * 10) + 9;
                break;

            default:
                break;
        }
    }

    *soNguyen = intResultSoNguyen;
    *thapPhan = intResultThapPhan;
}
// 2012 Dino Phan




/* Example/Mẫu:
int main(void) {
    char myArrayChar[30];
    int nguyen, thapphan;
    printf("Enter float number: ");
    gets(myArrayChar);
    floatFromStringtoInt(myArrayChar, &nguyen, &thapphan);
    printf("eQual: %d.\n", nguyen + thapphan);
    return 0;
}
*/