_cputs, _cputws

Article
06/05/2017

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at _cputs, _cputws.

Puts a string to the console.

Important

This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW.

Syntax

  
      int _cputs(   
const char *str   
);  
int _cputws(  
const wchar_t *str   
);

Parameters

str
Output string.

Return Value

If successful, _cputs returns 0. If the function fails, it returns a nonzero value.

Remarks

The _cputs function writes the null-terminated string that's pointed to by str directly to the console. A carriage return-line feed (CR-LF) combination is not automatically appended to the string.

This function validates its parameter. If str is NULL, the invalid parameter handler is invoked, as described in Parameter Validation. If execution is allowed to continue, errno is set to EINVAL and -1 is returned.

Generic-Text Routine Mappings

Tchar.h routine	_UNICODE and _MBCS not defined	_MBCS defined	_UNICODE defined
_cputts	`_cputs`	`_cputs`	`_cputws`

Requirements

Routine	Required header	Optional header
`_cputs`	<conio.h>	<errno.h>
`_cputws`	<conio.h>	<errno.h>

For more compatibility information, see Compatibility.

Libraries

All versions of the C run-time libraries.

Example

  
      // crt_cputs.c  
// compile with: /c  
// This program first displays a string to the console.  
  
#include <conio.h>  
#include <errno.h>  
  
void print_to_console(char* buffer)  
{  
   int retval;  
   retval = _cputs( buffer );  
   if (retval)  
   {  
       if (errno == EINVAL)  
       {  
         _cputs( "Invalid buffer in print_to_console.\r\n");  
       }  
       else  
         _cputs( "Unexpected error in print_to_console.\r\n");  
   }  
}  
  
void wprint_to_console(wchar_t* wbuffer)  
{  
   int retval;  
   retval = _cputws( wbuffer );  
   if (retval)  
   {  
       if (errno == EINVAL)  
       {  
         _cputws( L"Invalid buffer in wprint_to_console.\r\n");  
       }  
       else  
         _cputws( L"Unexpected error in wprint_to_console.\r\n");  
   }  
}  
  
int main()  
{  
  
   // String to print at console.   
   // Notice the \r (return) character.   
   char* buffer = "Hello world (courtesy of _cputs)!\r\n";  
   wchar_t *wbuffer = L"Hello world (courtesy of _cputws)!\r\n";  
   print_to_console(buffer);  
   wprint_to_console( wbuffer );  
}

Output

Hello world (courtesy of _cputs)!  
Hello world (courtesy of _cputws)!

Share via