xref: /onnv-gate/usr/src/lib/libc/port/fp/func_decim.c (revision 6812:febeba71273d)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*6812Sraf  * Common Development and Distribution License (the "License").
6*6812Sraf  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
21*6812Sraf 
220Sstevel@tonic-gate /*
23*6812Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
280Sstevel@tonic-gate 
29*6812Sraf #include "lint.h"
300Sstevel@tonic-gate #include <sys/types.h>
310Sstevel@tonic-gate #include <ctype.h>
320Sstevel@tonic-gate #include <stdio.h>
330Sstevel@tonic-gate #include "base_conversion.h"
340Sstevel@tonic-gate #include <locale.h>
350Sstevel@tonic-gate 
360Sstevel@tonic-gate void
func_to_decimal(char ** ppc,int nmax,int fortran_conventions,decimal_record * pd,enum decimal_string_form * pform,char ** pechar,int (* pget)(void),int * pnread,int (* punget)(int))370Sstevel@tonic-gate func_to_decimal(char **ppc, int nmax, int fortran_conventions,
380Sstevel@tonic-gate 		decimal_record *pd, enum decimal_string_form *pform,
390Sstevel@tonic-gate 		char **pechar, int (*pget)(void), int *pnread,
400Sstevel@tonic-gate 		int (*punget)(int))
410Sstevel@tonic-gate {
420Sstevel@tonic-gate 	char	*cp = *ppc - 1;	/* last character seen */
430Sstevel@tonic-gate 	char	*good = cp;	/* last character accepted */
440Sstevel@tonic-gate 	int	current;	/* *cp or EOF */
450Sstevel@tonic-gate 	int	nread = 0;	/* number of characters read so far */
460Sstevel@tonic-gate 
470Sstevel@tonic-gate #define	NEXT \
480Sstevel@tonic-gate 	if (nread < nmax) { \
490Sstevel@tonic-gate 		current = (*pget)(); \
500Sstevel@tonic-gate 		if (current != EOF) { \
510Sstevel@tonic-gate 			*++cp = (char)current; \
520Sstevel@tonic-gate 			nread++; \
530Sstevel@tonic-gate 		} \
540Sstevel@tonic-gate 	} else { \
550Sstevel@tonic-gate 		current = EOF; \
560Sstevel@tonic-gate 	}
570Sstevel@tonic-gate 
580Sstevel@tonic-gate 	NEXT;
590Sstevel@tonic-gate 
600Sstevel@tonic-gate #include "char_to_decimal.h"
610Sstevel@tonic-gate 
620Sstevel@tonic-gate 	if (punget != NULL) {
630Sstevel@tonic-gate 		/*
640Sstevel@tonic-gate 		 * If we read any characters beyond the end of the accepted
650Sstevel@tonic-gate 		 * token, try to push them back.
660Sstevel@tonic-gate 		 */
670Sstevel@tonic-gate 		while (cp >= *ppc) {
680Sstevel@tonic-gate 			if ((*punget)((int)(unsigned char)*cp) == EOF)
690Sstevel@tonic-gate 				break;
700Sstevel@tonic-gate 			cp--;
710Sstevel@tonic-gate 			nread--;
720Sstevel@tonic-gate 		}
730Sstevel@tonic-gate 	}
740Sstevel@tonic-gate 
750Sstevel@tonic-gate 	*++cp = '\0';
760Sstevel@tonic-gate 	*pnread = nread;
770Sstevel@tonic-gate }
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