_tprintf from MSDN

　　

printf, _printf_l, wprintf, _wprintf_l Visual Studio

Prints the formatted output to the standard output stream.  for more secure versions of these functions, see printf_s, _printf_s_l, wprintf_s, _wprintf_s_l.

Grammar

int printf (   const char *format [,   argument] ...); int _printf_l (   const char *format,   locale_t locale [,   argument] ...); int wprintf (   const wchar_t *format [,   argument] ...); int _wprintf_l (   const wchar_t *format,   locale_t locale [,   argument] ...);

Parameters

Format

The format control.

Argument

Optional parameters.

Locale

The locale to use.

return value

Returns the number of characters printed, or returns a negative value if an error occurs. parameter Validation. " if   format   is   NULL , invalid parameter handlers are called, as described in   parameter validation  .    errno   set to   EINVAL .    argument  , EOF   (0xFFFF), the function returns-1.   

For information about errno and error codes, see _doserrno, errno, _sys_errlist, and _sys_nerr.

Notes

printffunction to format a series of characters and values and print it to a standard output streamstdoutIn format   string,   format   string must contain a specification that determines the output format of the parameter.   fprintf behave identically except that printf writes output to stdout rather than to a destination of type FILE . " >  printf   and  fprintf  have the same behavior, but   printf   writes output to &NBSP stdout   instead of   FILE   type target.   

wprintf   is a wide-character version of   printf  ; format   is a wide string.    If the stream is open in ANSI mode, wprintf   and   printf   will have the same behavior.    printf   currently does not support output to a UNICODE stream.   

The versions of these functions with the _l suffix are the same, except that they use the locale parameter passed instead of the current thread locale.

Generic Text routine mapping

tchar. H routines	undefined _unicode & _mbcs	defined _mbcs	defined _unicode
_tprintf	< p> printf	printf	wprintf

The format parameter includes ordinary characters, escape sequences, and (if the parameters are formatted) a formal specification.  A sequence that follows its appearance copies ordinary characters and escape sequences to stdout. For example, line:

Build output:

Line one line        

The format specification always takes a percent sign (%) starts and reads from left to right.WhenprintfWhen the first format specification (if any) is encountered, it transformsformatAfter the value of the first parameter and outputs it accordingly. The second format specification causes the second parameter to be converted and output, and so on.    If you have more arguments than the format specification, the extra arguments are ignored.    If all the format specifications do not have sufficient parameters, the result is undefined.   

Security Note
Make sure that format is not a user-defined string.

Generic Text routine mapping

Tchar.h Routines	_unicode and _MBCS not defined	_mbcs defined	_unicode defined
_tprintf	Printf	Printf	wprintf
_tprintf_l	_printf_l	_printf_l	_wprintf_l

Requirements

Routines	Required headers
printf, _printf_l	<stdio.h>
wprintf, _wprintf_l	<stdio.h> or <wchar.h>

The console is not supported in Windows 8.x store apps.  standard flow handles associated with the console stdin,stdout , and stderr must be redirected, and then C run-time functions can be used in Windows 8.x store applications.  for more information about compatibility, see compatibility.

Example

crt_printf.c//the uses the printf and wprintf functions//to produce formatted output. #include <stdio.h&gt   ; int main (void) {char ch = ' h ', *string = "Computer";   wchar_t WCH = L ' W ', *wstring = L "Unicode";   int count =-9234;   Double fp = 251.7366; Display integers printf ("Integer formats:\n" "Decimal:%d Justified:%.6d" "Unsigned:%u\n   ", Count, Count, Count, count); Display decimals printf ("Decimal%d as:\n Hex:%xh" "C hex:0x%x octal:%o\n", Count, Coun   T, Count, Count);            Display in different radixes printf ("Digits equal:\n Hex:%i" "Octal:%i Decimal:%i\n",   0x10, 010, 10);   Display characters printf ("Characters in field (1): \ n" "%10c%5hc%5c%5lc\n", CH, ch, WCH, WCH);   wprintf (L "Characters in Field (2): \ n" L "%10c%5hc%5c%5lc\n", CH, ch, WCH, WCH); Display strings   printf ("Strings in field (1): \n%25s\n" "%25.4hs\n%s%25.3ls\n", String, String, wstring, wstring); wprintf (L "Strings in Field (2): \n%25s\n" L "%25.4hs\n%s%25.3ls\n", String, String, wstring, Wstrin   g);   Display Real numbers printf ("Real numbers:\n%f%.2f%e%e\n", FP, FP, FP, FP); Display pointer printf ("\naddress as:%p\n", &count);}

Sample Output

Integer formats:   Decimal: -9234  justified: -009234  unsigned:4294958062decimal-9234 as:   Hex: Ffffdbeeh  C Hex:0xffffdbee  octal:37777755756digits equal:   hex:16  octal:8  Decimal: 10Characters in field (1):         h    H    w    wcharacters in field (2):         h    H    w    wstrings in Field (1):                 computer                     Comp   Unicode                      unistrings in field (2):                 computer                     Comp   Unicode                      unireal numbers:   251.736600 251.74 2.517366e+002 2.517366e+002address as:   0012ff3c

. NET Framework Equivalents

• System::console::write

• System::console::writeline

Please see

Floating point Support
Stream I/O
Regional Settings
fopen, _wfopen
_fprintf_p, _fprintf_p_l, _fwprintf_p, _fwprintf_p_l
scanf, _scanf_l, wscanf, _wscanf_l
sprintf, _sprintf_l, swprintf, _swprintf_l, __swprintf_l
vprintf function
_set_output_format

_tprintf from MSDN