putchar, putwchar

Remonter à Stdio.h - Index

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).

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

Return Value

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

Example

 #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		+	+	+