putchar, putwchar

Header File

stdio.h

Category

Console I/O Routines

Prototype

int putchar(int c);

wint_t putwchar(wint_t c);

Description

putchar is a macro defined to be putc(c, stdout).

Note: For Win32 GUI applications, stdout must be redirected.

Return Value

On success, putchar returns the character c. On error, putchar returns EOF.

Example

Copy Code

#include <stdio.h>
/* define some box-drawing characters */
#define LEFT_TOP  0xDA
#define RIGHT_TOP 0xBF
#define HORIZ     0xC4
#define VERT      0xB3
#define LEFT_BOT  0xC0
#define RIGHT_BOT 0xD9
int main(void)
{
   char i, j;
   /* draw the top of the box */
   putchar(LEFT_TOP);
   for (i=0; i<10; i++)
      putchar(HORIZ);
   putchar(RIGHT_TOP);
   putchar('\n');
   /* draw the middle */
   for (i=0; i<4; i++)
   {
      putchar(VERT);
      for (j=0; j<10; j++)
         putchar(' ');
      putchar(VERT);
      putchar('\n');
   }
   /* draw the bottom */
   putchar(LEFT_BOT);
   for (i=0; i<10; i++)
      putchar(HORIZ);
   putchar(RIGHT_BOT);
   putchar('\n');
   return 0;
}

Portability

	POSIX	Win32	ANSI C	ANSI C++
putchar	+	+	+	+
putwchar		+	+	+

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