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gets is an insecure function, its careless use can lead to errors. If you
want to use gets, consider using fgets instead, supplying stdin as
the file reference parameter.
The gets function waits until a line of input is available (unless one is already
available), and consumes the whole line including the ENTER/newline at the end.
The characters on the line are stored in the string parameter, except for the
ENTER/newline, which is discarded.
returns NULL on end-of-file, otherwise the parameter s.
The parameter given to gets must be an already allocated array of characters, not an
uninitialised char * pointer; gets will never allocate memory.
{ char a[100]; gets(line); // This is correct
{ char a[100]; char *s; s=a; gets(s); // This is correct
{ char *s; s=new char[100]; gets(s); // This is correct
{ char *s; gets(s); // This is WRONG
The array given to gets must be big enough to hold any line that could conceivably be
input. C++ and C are incapable of telling how long an array is. If it is not long enough
for the data that is read, other data (and perhaps program code) will be overwritten.
Thus gets is not a safe function for use in critical applications.
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What is the difference between gets and puts?
Direction: gets: from standard input to memory puts: from memory to standard input note: 'gets' is unsafe, use 'fgets' instead
What is the use of gets function in c language?
Nothing, it is a security hole. Use 'fgets' instead.
What is difference between scanf and cin?
scanf is a function (available in C and C++)cin is an istream object (C++ only)Advice: when in doubt, use fgets+sscanf
Is puts safe to use?
There is nothing wrong with 'puts' but you should avoid the using of 'gets', and even 'fgets' has a disadvantage: if the input contains a binary zero, you will lose data.
Is that any other way to input data in c language other than scanf function?
read, fread, gets, fgets, getc, fgetc, getchar, getch
What is the difference between gets and puts?
Direction: gets: from standard input to memory puts: from memory to standard input note: 'gets' is unsafe, use 'fgets' instead
How do you input a string in c?
just use fgets() from file stdio.h (not gets: it is security hole)
What is the use of gets function in c language?
Nothing, it is a security hole. Use 'fgets' instead.
What is difference between scanf and cin?
scanf is a function (available in C and C++)cin is an istream object (C++ only)Advice: when in doubt, use fgets+sscanf
In gets function which will you use to fix the size of the string and specify the number of characters?
Never use gets, use fgets instead. And strlenafterwards.
Which function used to read characters into an array specified by its parameter?
Examples: recv, read, fread, gets, fgets, scanf, fscanf
Is puts safe to use?
There is nothing wrong with 'puts' but you should avoid the using of 'gets', and even 'fgets' has a disadvantage: if the input contains a binary zero, you will lose data.
Is that any other way to input data in c language other than scanf function?
read, fread, gets, fgets, getc, fgetc, getchar, getch
How do you read line by line of a file in c program?
read, fread, fgetc, fgets, fscanf etc... use the help/manual
How many arguments that fgets function requires?
Three.
What is one similarity and difference between the Sahel and savanna?
A similarity between a Sahel and the savannah is it gets rainfall :)
Why does tea cool at a constant rate?
It doesn't. The rate at which it cools is proportional to the difference between its temperature and that of the surrounding air. The cooler it gets, the lower that difference gets and the cooling will slow down.
