CODEWITHSUNDEEP
carrayspointerschar
ejscribner
ejscribner

Reputation: 365

Creating a char** of words read in from getline() in C

I'm trying to create a dynamic char** of words as they are read in from getline()

while ((lineLength = getline(&line, &n, stdin)) != -1) {
    if(lineLength > 0)
    {
        if(line[lineLength - 1] == '\n')
        {
            line[lineLength - 1] = '\0';
        }
    }
}

but I'm having issues using malloc() to create the element and dynamically allocate the memory for it. I'm currently trying to 

char** words = (char**)malloc(x*sizeof(char));

but am getting errors. What is the best way to accomplish this?

Upvotes: 0

Views: 47

Answers (1)

OrdoFlammae
OrdoFlammae

Reputation: 731

sizeof(char) is different than sizeof(char*). sizeof(char) is generally 1, while the size of a pointer is implementation-defined, but always larger than that. You really aren't allocating enough room for your pointer. Because you have a pointer of pointers, I think the code you really want is

char** words = (char**)malloc(x*sizeof(char*));

Upvotes: 2

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