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Diffstat (limited to 'x68/_round.c')
-rw-r--r-- | x68/_round.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/x68/_round.c b/x68/_round.c deleted file mode 100644 index 761930fb8c..0000000000 --- a/x68/_round.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * PROJECT C Library, X68000 PROGRAMMING INTERFACE DEFINITION - * -------------------------------------------------------------------- - * This file is written by the Project C Library Group, and completely - * in public domain. You can freely use, copy, modify, and redistribute - * the whole contents, without this notice. - * -------------------------------------------------------------------- - * $Id$ - */ -/* changed 1997.2.2 by K.Okabe */ - -/* System headers */ -#include <stdlib.h> -#include <sys/xstdlib.h> - -/* Functions */ -int _round (char *top, char *cur, int undig) -{ - char *ptr; - - /* 最後が5未満なら丸めは必要ない */ - if (undig < '5') - return 0; - - /* ポインタ設定 */ - ptr = cur - 1; - - /* 先頭まで戻りながら丸め処理 */ - while (ptr >= top) { - - /* 繰り上がらなければそれで終わり */ - if (++(*ptr) <= '9') - return 0; - - /* その桁を0に戻す */ - *ptr-- = '0'; - - } - - /* 先頭を1にする */ - *++ptr = '1'; - - /* 繰り上がりをしらせる */ - return 1; -} |