How to store string from struct into a 2D array

Question

Say I have char Name[100][20] and a struct text with the char variable name1. I have a txt file that contains a name and for which I used sscanf to store it to text.name1. Now I want to store that string into the first row of the 2D array so I did Name[0][20]={"%s",text.name1}; but it results to an error that says expected expression before '{' token. Can someone please tell me how to fix this :(

It would be better to post the code instead of describing the code. If it's correct that name1 is a char, you have big problems... BTW: To copy strings in C use strcpy — 4386427
– 4386427, Commented Jun 7, 2021 at 12:50
Please show the code you have so far. And tell us what doesn't work or which problem you have. — fpiette
– fpiette, Commented Jun 7, 2021 at 12:51
Please edit your question, copy&paste the code and format it as a code block. (For the formatting you can use the {} tool of the editor field.) — Bodo
– Bodo, Commented Jun 7, 2021 at 12:51
{"%s",text.name1} looks like some shorthand from a different language... maybe Ruby? this isn't C code. In C you might want to copy the string strcpy or the memory memcpy... — Myst
– Myst, Commented Jun 7, 2021 at 13:00

itzFlubby · Accepted Answer · 2021-06-07 12:50:11Z

1

With Name[0][20]={"%s",text.name1}; you're trying to initialize the array.
However, {"%s",text.name1}; is not a valid array initializer. To copy text into an array, you can use something like memcpy(), or sprintf():

sprintf(Name[0], "%s", text.name1);

answered Jun 7, 2021 at 12:50

itzFlubby

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3 Comments

4386427 Over a year ago

Why use sprintf when we have strcpy ?

redshorts17 Over a year ago

I tried that and it resulted in like a buffer overflow when running :(

itzFlubby Over a year ago

"in like a" : how sure are you about the problem being a buffer overflow? You could try strcpy like 4386427 pointed out, or if the string isn't null-terminated memcpy(Name[0], text.name1, 20); 20 is the amount of bytes being copied. In your question you set this value to be 20, so I just used that.

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