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check command line input is a number in c

Tough Tortoise answered on February 22, 2020 Popularity 8/10 Helpfulness 2/10

answer check command line input is a number in c

check command line input is a number in c

Comment

bool isNumber(char number[])
{
    int i = 0;

    //checking for negative numbers
    if (number[0] == '-')
        i = 1;
    for (; number[i] != 0; i++)
    {
        //if (number[i] > '9' || number[i] < '0')
        if (!isdigit(number[i]))
            return false;
    }
    return true;
}

Popularity 8/10 Helpfulness 2/10 Language c

Source: stackoverflow.com

Tags: c command-line input

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