How to take an input string containing a sentence with spaces in C programming

Question

We cannot use the scanf() function since after the first space, other part of the string will be neglected. If gets() fuction used it says buffer overflow.

Answer 1

Use fgets to prevent overflow... It takes 3 parameters...
fgets(char *str,int n,File* stream) for ur case if ur array name is str, and u want to input 30 characters to be stored from console use...
fgets(str, 30,stdin) ;

Answer 2

You can use `scanf` too, but care needed to be taken to prevent buffer overflow.

// allocate 50 characters + 1
// for the string terminator
char buffer[51] = {0};
// Read up to 50 characters into
// <buffer> or until a \n is found
scanf("%50[^\n]s", buffer);
printf("%s\n", buffer);

Look at this reference and scroll down to find negated scanset

http://www.cplusplus.com/reference/cstdio/scanf/