-/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Contributed by Andy Vaught
Namelist output contributed by Paul Thomas
F2003 I/O support contributed by Jerry DeLisle
-This file is part of the GNU Fortran 95 runtime library (libgfortran).
+This file is part of the GNU Fortran runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
<http://www.gnu.org/licenses/>. */
#include "io.h"
+#include "format.h"
+#include "unix.h"
#include <assert.h>
#include <string.h>
#include <ctype.h>
}
break;
#ifdef HAVE_GFC_INTEGER_16
+ case 10:
case 16:
{
- GFC_INTEGER_16 tmp;
+ GFC_INTEGER_16 tmp = 0;
memcpy ((void *) &tmp, p, len);
i = (GFC_UINTEGER_16) tmp;
}
static void
-write_int (st_parameter_dt *dtp, const fnode *f, const char *source, int len,
- const char *(*conv) (GFC_UINTEGER_LARGEST, char *, size_t))
+write_boz (st_parameter_dt *dtp, const fnode *f, const char *q, int n)
{
- GFC_UINTEGER_LARGEST n = 0;
int w, m, digits, nzero, nblank;
char *p;
- const char *q;
- char itoa_buf[GFC_BTOA_BUF_SIZE];
w = f->u.integer.w;
m = f->u.integer.m;
- n = extract_uint (source, len);
-
/* Special case: */
if (m == 0 && n == 0)
goto done;
}
- q = conv (n, itoa_buf, sizeof (itoa_buf));
digits = strlen (q);
/* Select a width if none was specified. The idea here is to always
goto done;
}
-
if (!dtp->u.p.no_leading_blank)
{
memset (p, ' ', nblank);
return p;
}
+/* The following three functions, btoa_big, otoa_big, and ztoa_big, are needed
+ to convert large reals with kind sizes that exceed the largest integer type
+ available on certain platforms. In these cases, byte by byte conversion is
+ performed. Endianess is taken into account. */
+
+/* Conversion to binary. */
+
+static const char *
+btoa_big (const char *s, char *buffer, int len, GFC_UINTEGER_LARGEST *n)
+{
+ char *q;
+ int i, j;
+
+ q = buffer;
+ if (big_endian)
+ {
+ const char *p = s;
+ for (i = 0; i < len; i++)
+ {
+ char c = *p;
+
+ /* Test for zero. Needed by write_boz later. */
+ if (*p != 0)
+ *n = 1;
+
+ for (j = 0; j < 8; j++)
+ {
+ *q++ = (c & 128) ? '1' : '0';
+ c <<= 1;
+ }
+ p++;
+ }
+ }
+ else
+ {
+ const char *p = s + len - 1;
+ for (i = 0; i < len; i++)
+ {
+ char c = *p;
+
+ /* Test for zero. Needed by write_boz later. */
+ if (*p != 0)
+ *n = 1;
+
+ for (j = 0; j < 8; j++)
+ {
+ *q++ = (c & 128) ? '1' : '0';
+ c <<= 1;
+ }
+ p--;
+ }
+ }
+
+ *q = '\0';
+
+ if (*n == 0)
+ return "0";
+
+ /* Move past any leading zeros. */
+ while (*buffer == '0')
+ buffer++;
+
+ return buffer;
+
+}
+
+/* Conversion to octal. */
+
+static const char *
+otoa_big (const char *s, char *buffer, int len, GFC_UINTEGER_LARGEST *n)
+{
+ char *q;
+ int i, j, k;
+ uint8_t octet;
+
+ q = buffer + GFC_OTOA_BUF_SIZE - 1;
+ *q = '\0';
+ i = k = octet = 0;
+
+ if (big_endian)
+ {
+ const char *p = s + len - 1;
+ char c = *p;
+ while (i < len)
+ {
+ /* Test for zero. Needed by write_boz later. */
+ if (*p != 0)
+ *n = 1;
+
+ for (j = 0; j < 3 && i < len; j++)
+ {
+ octet |= (c & 1) << j;
+ c >>= 1;
+ if (++k > 7)
+ {
+ i++;
+ k = 0;
+ c = *--p;
+ }
+ }
+ *--q = '0' + octet;
+ octet = 0;
+ }
+ }
+ else
+ {
+ const char *p = s;
+ char c = *p;
+ while (i < len)
+ {
+ /* Test for zero. Needed by write_boz later. */
+ if (*p != 0)
+ *n = 1;
+
+ for (j = 0; j < 3 && i < len; j++)
+ {
+ octet |= (c & 1) << j;
+ c >>= 1;
+ if (++k > 7)
+ {
+ i++;
+ k = 0;
+ c = *++p;
+ }
+ }
+ *--q = '0' + octet;
+ octet = 0;
+ }
+ }
+
+ if (*n == 0)
+ return "0";
+
+ /* Move past any leading zeros. */
+ while (*q == '0')
+ q++;
+
+ return q;
+}
+
+/* Conversion to hexidecimal. */
+
+static const char *
+ztoa_big (const char *s, char *buffer, int len, GFC_UINTEGER_LARGEST *n)
+{
+ static char a[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
+
+ char *q;
+ uint8_t h, l;
+ int i;
+
+ q = buffer;
+
+ if (big_endian)
+ {
+ const char *p = s;
+ for (i = 0; i < len; i++)
+ {
+ /* Test for zero. Needed by write_boz later. */
+ if (*p != 0)
+ *n = 1;
+
+ h = (*p >> 4) & 0x0F;
+ l = *p++ & 0x0F;
+ *q++ = a[h];
+ *q++ = a[l];
+ }
+ }
+ else
+ {
+ const char *p = s + len - 1;
+ for (i = 0; i < len; i++)
+ {
+ /* Test for zero. Needed by write_boz later. */
+ if (*p != 0)
+ *n = 1;
+
+ h = (*p >> 4) & 0x0F;
+ l = *p-- & 0x0F;
+ *q++ = a[h];
+ *q++ = a[l];
+ }
+ }
+
+ *q = '\0';
+
+ if (*n == 0)
+ return "0";
+
+ /* Move past any leading zeros. */
+ while (*buffer == '0')
+ buffer++;
+
+ return buffer;
+}
/* gfc_itoa()-- Integer to decimal conversion.
The itoa function is a widespread non-standard extension to standard
void
-write_b (st_parameter_dt *dtp, const fnode *f, const char *p, int len)
+write_b (st_parameter_dt *dtp, const fnode *f, const char *source, int len)
{
- write_int (dtp, f, p, len, btoa);
+ const char *p;
+ char itoa_buf[GFC_BTOA_BUF_SIZE];
+ GFC_UINTEGER_LARGEST n = 0;
+
+ if (len > (int) sizeof (GFC_UINTEGER_LARGEST))
+ {
+ p = btoa_big (source, itoa_buf, len, &n);
+ write_boz (dtp, f, p, n);
+ }
+ else
+ {
+ n = extract_uint (source, len);
+ p = btoa (n, itoa_buf, sizeof (itoa_buf));
+ write_boz (dtp, f, p, n);
+ }
}
void
-write_o (st_parameter_dt *dtp, const fnode *f, const char *p, int len)
+write_o (st_parameter_dt *dtp, const fnode *f, const char *source, int len)
{
- write_int (dtp, f, p, len, otoa);
+ const char *p;
+ char itoa_buf[GFC_OTOA_BUF_SIZE];
+ GFC_UINTEGER_LARGEST n = 0;
+
+ if (len > (int) sizeof (GFC_UINTEGER_LARGEST))
+ {
+ p = otoa_big (source, itoa_buf, len, &n);
+ write_boz (dtp, f, p, n);
+ }
+ else
+ {
+ n = extract_uint (source, len);
+ p = otoa (n, itoa_buf, sizeof (itoa_buf));
+ write_boz (dtp, f, p, n);
+ }
}
void
-write_z (st_parameter_dt *dtp, const fnode *f, const char *p, int len)
+write_z (st_parameter_dt *dtp, const fnode *f, const char *source, int len)
{
- write_int (dtp, f, p, len, gfc_xtoa);
+ const char *p;
+ char itoa_buf[GFC_XTOA_BUF_SIZE];
+ GFC_UINTEGER_LARGEST n = 0;
+
+ if (len > (int) sizeof (GFC_UINTEGER_LARGEST))
+ {
+ p = ztoa_big (source, itoa_buf, len, &n);
+ write_boz (dtp, f, p, n);
+ }
+ else
+ {
+ n = extract_uint (source, len);
+ p = gfc_xtoa (n, itoa_buf, sizeof (itoa_buf));
+ write_boz (dtp, f, p, n);
+ }
}
if (is_array_io (dtp))
{
gfc_offset record;
- int finished, length;
+ int finished;
- length = (int) dtp->u.p.current_unit->bytes_left;
-
/* Now that the current record has been padded out,
determine where the next record in the array is. */
record = next_array_record (dtp, dtp->u.p.current_unit->ls,
obj, ext_name);
}
- free_mem (obj_name);
- free_mem (ext_name);
+ free (obj_name);
+ free (ext_name);
goto obj_loop;
default:
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