The C library function char *gets(char *str) reads a line from stdin and stores it into the string pointed to by str. It stops when either the newline character is read or when the end-of-file is reached, whichever comes first.
DescriptionDeclaration
Following is the declaration for gets() function.
Parameters
Return Value
This function returns str on success, and NULL on error or when end of file occurs, while no characters have been read.
Example
The following example shows the usage of gets() function.
Let us compile and run the above program that will produce the following result −
For a general-purpose text input function in the C programming language, one that reads beyond the first white space character, try the fgets() function. Here’s the format:
Frightening, no? That’s because fgets() is a file function, which reads text from a file, as in “file get string.” That’s how programmers talk after an all-nighter.
Because the operating system considers standard input like a file, you can use fgets() to read text from the keyboard.
Here’s a simplified version of the fgets() function as it applies to reading text input:
In this example, string is the name of a char array, a string variable; size is the amount of text to input plus one, which should be the same size as the char array; and stdin is the name of the standard input device, as defined in the stdio.h header file.
THE FGETS() FUNCTION READS A STRING
Gets Function In C Ubuntu
Exercise 1: Type the source code from The fgets() Function Reads a String into a new project, ex0716. Compile and run.
The fgets() function in Line 8 reads in text. The text goes into the name array, which is set to a maximum of ten characters in Line 5. The number 10 specifies that fgets() reads in only nine characters, one less than the number specified. Finally, stdin is specified as the “file” from which input is read. stdin is standard input.
The char array must have one extra character reserved for the at the end of a string. Its size must equal the size of input you need — plus one.
Here’s how the program runs:
Only the first nine characters of the text typed in the first line are displayed. Why only nine? Because of the string’s terminating character — the NULL, or . The room for this character is defined when the name array is created in Line 5. If fgets() were to read in ten characters instead of nine, the array would overflow, and the program could malfunction.
Exercise 2: Change the array size in the source code from The fgets() Function Reads a String to a constant value. Set the constant to allow only three characters input.
DescriptionDeclaration
Following is the declaration for gets() function.
Parameters
Return Value
This function returns str on success, and NULL on error or when end of file occurs, while no characters have been read.
Example
The following example shows the usage of gets() function.
Gets Function In Dev C++
Let us compile and run the above program that will produce the following result −
-->
Gets a line from the
stdin stream. Plants vs zombies hack download. More secure versions of these functions are available; see gets_s, _getws_s.
Important
May 09, 2019 Download the Microsoft Visual C 2010 Service Pack 1 Redistributable Package MFC Security Update. This is the latest supported Visual C redistributable package update for Visual Studio 2010. This is the latest supported Visual C redistributable package update for Visual Studio. Installing microsoft vc redist package. Feb 04, 2014 Installing: Microsoft VC Redist Package (step 1 of 1) What the OP hasn't tried is simply launching the Task Manager and killing the installer's process. Of course there isn't going to be one launched in safe mode, but it is not what 'solved' the problem. Sep 20, 2014 Installation hangs at 'Microsoft VC Redist Package' FIXED/CLOSED. Uninstall deadstate and then reinstall it. If on windows 8 or higher, play in win 7 compatibility mode. If on Steam beta, opt out. (known to cause issues) Try switching to experimental build (still in win 7 mode). Right click DS in your Steam Library - Properties - Betas. Jun 05, 2019 Microsoft VC Redist Package cannot install. It says that the.msi file is either not valid or does not exist. I've reinstalled the games, but that does not help, and sometimes I can pass by without having to install, but most of the time I cant install the package, which results in not being able to access my newly bought game. Jul 10, 2015 The Visual C Redistributable Packages install run-time components of Visual C libraries. These components are required to run C applications that are developed using Visual Studio 2015 and link dynamically to Visual C libraries.
These functions are obsolete. Beginning in Visual Studio 2015, they are not available in the CRT. The secure versions of these functions, gets_s and _getws_s, are still available. For information on these alternative functions, see gets_s, _getws_s.
Important
This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported in Universal Windows Platform apps.
SyntaxParameters
buffer
Storage location for input string. Return Value
Returns its argument if successful. A NULL pointer indicates an error or end-of-file condition. Use ferror or feof to determine which one has occurred. If
buffer is NULL, these functions invoke an invalid parameter handler, as described in Parameter Validation. If execution is allowed to continue, these functions return NULL and set errno to EINVAL .
RemarksGets Function In C++ Include
The
gets function reads a line from the standard input stream stdin and stores it in buffer . The line consists of all characters up to and including the first newline character ('n'). gets then replaces the newline character with a null character ('0') before returning the line. In contrast, the fgets function retains the newline character. _getws is a wide-character version of gets ; its argument and return value are wide-character strings.
Important
Because there is no way to limit the number of characters read by gets, untrusted input can easily cause buffer overruns. Use
fgets instead.
In C++, these functions have template overloads that invoke the newer, secure counterparts of these functions. For more information, see Secure Template Overloads.
Generic-Text Routine Mappings
Requirements
For additional compatibility information, see Compatibility.
Example
Note that input longer than 20 characters will overrun the line buffer and almost certainly cause the program to crash.
See also
Stream I/O
fgets, fgetws fputs, fputws puts, _putws Comments are closed.
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