1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
#include "f2c.h"
#include "fio.h"
#include "fmt.h"
#include "fp.h"
#ifndef VAX
#include "ctype.h"
#endif
#ifndef KR_headers
#undef abs
#undef min
#undef max
#include "stdlib.h"
#include "string.h"
#endif
#ifdef KR_headers
wrt_E(p,w,d,e,len) ufloat *p; ftnlen len;
#else
wrt_E(ufloat *p, int w, int d, int e, ftnlen len)
#endif
{
char buf[FMAX+EXPMAXDIGS+4], *s, *se;
int d1, delta, e1, i, sign, signspace;
double dd;
#ifdef WANT_LEAD_0
int insert0 = 0;
#endif
#ifndef VAX
int e0 = e;
#endif
if(e <= 0)
e = 2;
if(f__scale) {
if(f__scale >= d + 2 || f__scale <= -d)
goto nogood;
}
if(f__scale <= 0)
--d;
if (len == sizeof(real))
dd = p->pf;
else
dd = p->pd;
if (dd < 0.) {
signspace = sign = 1;
dd = -dd;
}
else {
sign = 0;
signspace = (int)f__cplus;
#ifndef VAX
if (!dd)
dd = 0.; /* avoid -0 */
#endif
}
delta = w - (2 /* for the . and the d adjustment above */
+ 2 /* for the E+ */ + signspace + d + e);
#ifdef WANT_LEAD_0
if (f__scale <= 0 && delta > 0) {
delta--;
insert0 = 1;
}
else
#endif
if (delta < 0) {
nogood:
while(--w >= 0)
PUT('*');
return(0);
}
if (f__scale < 0)
d += f__scale;
if (d > FMAX) {
d1 = d - FMAX;
d = FMAX;
}
else
d1 = 0;
sprintf(buf,"%#.*E", d, dd);
#ifndef VAX
/* check for NaN, Infinity */
if (!isdigit(buf[0])) {
switch(buf[0]) {
case 'n':
case 'N':
signspace = 0; /* no sign for NaNs */
}
delta = w - strlen(buf) - signspace;
if (delta < 0)
goto nogood;
while(--delta >= 0)
PUT(' ');
if (signspace)
PUT(sign ? '-' : '+');
for(s = buf; *s; s++)
PUT(*s);
return 0;
}
#endif
se = buf + d + 3;
#ifdef GOOD_SPRINTF_EXPONENT /* When possible, exponent has 2 digits. */
if (f__scale != 1 && dd)
sprintf(se, "%+.2d", atoi(se) + 1 - f__scale);
#else
if (dd)
sprintf(se, "%+.2d", atoi(se) + 1 - f__scale);
else
strcpy(se, "+00");
#endif
s = ++se;
if (e < 2) {
if (*s != '0')
goto nogood;
}
#ifndef VAX
/* accommodate 3 significant digits in exponent */
if (s[2]) {
#ifdef Pedantic
if (!e0 && !s[3])
e1 = 2;/* for(s -= 2, e1 = 2; s[0] = s[1]; s++);
/* Pedantic gives the behavior that Fortran 77 specifies, */
/* i.e., requires that E be specified for exponent fields */
/* of more than 3 digits. With Pedantic undefined, we get */
/* the behavior that Cray displays -- you get a bigger */
/* exponent field if it fits. */
#else
if (!e0) {
for(s -= 2, e1 = 2; s[0] = s[1]; s++)
#ifdef CRAY
delta--;
if ((delta += 4) < 0)
goto nogood
#endif
;
}
#endif
else if (e0 >= 0)
goto shift;
else
e1 = e;
}
else
shift:
#endif
for(s += 2, e1 = 2; *s; ++e1, ++s)
if (e1 >= e)
goto nogood;
while(--delta >= 0)
PUT(' ');
if (signspace)
PUT(sign ? '-' : '+');
s = buf;
i = f__scale;
if (f__scale <= 0) {
#ifdef WANT_LEAD_0
if (insert0)
PUT('0');
#endif
PUT('.');
for(; i < 0; ++i)
PUT('0');
PUT(*s);
s += 2;
}
else if (f__scale > 1) {
PUT(*s);
s += 2;
while(--i > 0)
PUT(*s++);
PUT('.');
}
if (d1) {
se -= 2;
while(s < se) PUT(*s++);
se += 2;
do PUT('0'); while(--d1 > 0);
}
while(s < se)
PUT(*s++);
if (e < 2)
PUT(s[1]);
else {
while(++e1 <= e)
PUT('0');
while(*s)
PUT(*s++);
}
return 0;
}
#ifdef KR_headers
wrt_F(p,w,d,len) ufloat *p; ftnlen len;
#else
wrt_F(ufloat *p, int w, int d, ftnlen len)
#endif
{
int d1, sign, n;
double x;
char *b, buf[MAXINTDIGS+MAXFRACDIGS+4], *s;
x= (len==sizeof(real)?p->pf:p->pd);
if (d < MAXFRACDIGS)
d1 = 0;
else {
d1 = d - MAXFRACDIGS;
d = MAXFRACDIGS;
}
if (x < 0.)
{ x = -x; sign = 1; }
else {
sign = 0;
#ifndef VAX
if (!x)
x = 0.;
#endif
}
if (n = f__scale)
if (n > 0)
do x *= 10.; while(--n > 0);
else
do x *= 0.1; while(++n < 0);
#ifdef USE_STRLEN
sprintf(b = buf, "%#.*f", d, x);
n = strlen(b) + d1;
#else
n = sprintf(b = buf, "%#.*f", d, x) + d1;
#endif
#ifndef WANT_LEAD_0
if (buf[0] == '0' && d)
{ ++b; --n; }
#endif
if (sign) {
/* check for all zeros */
for(s = b;;) {
while(*s == '0') s++;
switch(*s) {
case '.':
s++; continue;
case 0:
sign = 0;
}
break;
}
}
if (sign || f__cplus)
++n;
if (n > w) {
#ifdef WANT_LEAD_0
if (buf[0] == '0' && --n == w)
++b;
else
#endif
{
while(--w >= 0)
PUT('*');
return 0;
}
}
for(w -= n; --w >= 0; )
PUT(' ');
if (sign)
PUT('-');
else if (f__cplus)
PUT('+');
while(n = *b++)
PUT(n);
while(--d1 >= 0)
PUT('0');
return 0;
}
|
