Format a string in C

Question

Normally you can print the string in C like this..

printf("No record with name %s found\n", inputString);

But i wanted to make a string out of it, how i can do it? I am looking for something like this..

char *str = ("No record with name %s found\n", inputString);

I hope this has clear what i am looking for...

Answer 1

One option would be to use sprintf, which works just like printf but takes as its first parameter a pointer to the buffer into which it should place the resulting string.

It is preferable to use snprintf, which takes an additional parameter containing the length of the buffer to prevent buffer overruns. For example:

char buffer[1024];
snprintf(buffer, 1024, "No record with name %s found\n", inputString);

Answer 2

Look into sprintf (see below).

int n = sprintf(str, "No record with name %s found\n", inputString);

Answer 3

Use

sprintf(str, "No record with name %s found\n", inputString);

Answer 4

Since this is homework (thanks for tagging it as such) I'll suggest you to look closely at the ...printf() family of functions.

I'm sure you'll find the solution :)

Answer 5

My man page for printf ("man 3 printf" on any linux box) contains your answer on the 11th line.