X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=doc%2Fhtml%2Fman%2Fcurs_printw.3x.html;h=a9a490e515d5b1153d12606acce88ade4349f313;hb=d1a029866f6d84087781eaa81de19949d8533426;hp=994a1b5d6bcacb2c55d43a7440aca99f8c969285;hpb=d97989d1e0db7282c723cabb44b991b951790006;p=ncurses.git diff --git a/doc/html/man/curs_printw.3x.html b/doc/html/man/curs_printw.3x.html index 994a1b5d..a9a490e5 100644 --- a/doc/html/man/curs_printw.3x.html +++ b/doc/html/man/curs_printw.3x.html @@ -1,6 +1,7 @@ -
--curs_printw(3x) curs_printw(3x) +curs_printw(3x) Library calls curs_printw(3x) @@ -53,14 +54,14 @@
#include <curses.h> - int printw(const char *fmt, ...); - int wprintw(WINDOW *win, const char *fmt, ...); - int mvprintw(int y, int x, const char *fmt, ...); - int mvwprintw(WINDOW *win, int y, int x, const char *fmt, ...); - int vw_printw(WINDOW *win, const char *fmt, va_list varglist); + int printw(const char *fmt, ...); + int wprintw(WINDOW *win, const char *fmt, ...); + int mvprintw(int y, int x, const char *fmt, ...); + int mvwprintw(WINDOW *win, int y, int x, const char *fmt, ...); + int vw_printw(WINDOW *win, const char *fmt, va_list varglist); /* obsolete */ - int vwprintw(WINDOW *win, const char *fmt, va_list varglist); + int vwprintw(WINDOW *win, const char *fmt, va_list varglist);
@@ -69,7 +70,7 @@ printf is output instead as though waddstr were used on the given win- dow. - The vwprintw and wv_printw routines are analogous to vprintf [see + The vwprintw and vw_printw routines are analogous to vprintf [see printf(3)] and perform a wprintw using a variable argument list. The third argument is a va_list, a pointer to a list of arguments, as de- fined in <stdarg.h>. @@ -90,21 +91,48 @@ the window pointer is null. +
+ While printw was implemented in 4BSD, it was unused until 4.2BSD (which + used it in games). That early version of curses was before the ANSI C + standard. It did not use <varargs.h>, though that was available. In + 1991 (a couple of years after SVr4 was generally available, and after + the C standard was published), other developers updated the library, + using <stdarg.h> internally in 4.4BSD curses. Even with this improve- + ment, BSD curses did not use function prototypes (or even declare func- + tions) in the <curses.h> header until 1992. + + SVr2 documented printw, wprintw tersely as "printf on stdscr" and + tersely as "printf on win", respectively. + + SVr3 added mvprintw, and mvwprintw, with a three-line summary saying + that they were analogous to printf(3), explaining that the string which + would be output from printf(3) would instead be output using waddstr on + the given window. SVr3 also added vwprintw, saying that the third pa- + rameter is a va_list, defined in <varargs.h>, and referring the reader + to the manual pages for varargs and vprintf for detailed descriptions. + + SVr4 added no new variations of printw, but provided for using + <varargs.h> or <stdarg.h> to define the va_list type. + + X/Open Curses added vw_printw to replace vwprintw, stating that its + va_list definition requires <stdarg.h>. + +
- In this implementation, vw_printw and vwprintw are equivalent, to sup- + In this implementation, vw_printw and vwprintw are equivalent, to sup- port legacy applications. However, the latter (vwprintw) is obsolete: - o The XSI Curses standard, Issue 4 described these functions. The - function vwprintw is marked TO BE WITHDRAWN, and is to be replaced + o The XSI Curses standard, Issue 4 described these functions. The + function vwprintw is marked TO BE WITHDRAWN, and is to be replaced by a function vw_printw using the <stdarg.h> interface. - o The Single Unix Specification, Version 2 states that vw_printw is - preferred to vwprintw since the latter requires including - <varargs.h>, which cannot be used in the same file as <stdarg.h>. - This implementation uses <stdarg.h> for both, because that header + o The Single Unix Specification, Version 2 states that vw_printw is + preferred to vwprintw since the latter requires including + <varargs.h>, which cannot be used in the same file as <stdarg.h>. + This implementation uses <stdarg.h> for both, because that header is included in <curses.h>. - o X/Open Curses, Issue 5 (December 2007) marked vwprintw (along with + o X/Open Curses, Issue 5 (December 2007) marked vwprintw (along with vwscanw and the termcap interface) as withdrawn. @@ -114,7 +142,7 @@ - curs_printw(3x) +ncurses 6.4 2022-02-12 curs_printw(3x)