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Side by Side Diff: fusl/src/stdlib/wcstod.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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1 #include "shgetc.h" 1 #include "shgetc.h"
2 #include "floatscan.h" 2 #include "floatscan.h"
3 #include "stdio_impl.h" 3 #include "stdio_impl.h"
4 #include <wchar.h> 4 #include <wchar.h>
5 #include <wctype.h> 5 #include <wctype.h>
6 6
7 /* This read function heavily cheats. It knows: 7 /* This read function heavily cheats. It knows:
8 * (1) len will always be 1 8 * (1) len will always be 1
9 * (2) non-ascii characters don't matter */ 9 * (2) non-ascii characters don't matter */
10 10
11 static size_t do_read(FILE *f, unsigned char *buf, size_t len) 11 static size_t do_read(FILE* f, unsigned char* buf, size_t len) {
12 { 12 size_t i;
13 » size_t i; 13 const wchar_t* wcs = f->cookie;
14 » const wchar_t *wcs = f->cookie;
15 14
16 » if (!wcs[0]) wcs=L"@"; 15 if (!wcs[0])
17 » for (i=0; i<f->buf_size && wcs[i]; i++) 16 wcs = L"@";
18 » » f->buf[i] = wcs[i] < 128 ? wcs[i] : '@'; 17 for (i = 0; i < f->buf_size && wcs[i]; i++)
19 » f->rpos = f->buf; 18 f->buf[i] = wcs[i] < 128 ? wcs[i] : '@';
20 » f->rend = f->buf + i; 19 f->rpos = f->buf;
21 » f->cookie = (void *)(wcs+i); 20 f->rend = f->buf + i;
21 f->cookie = (void*)(wcs + i);
22 22
23 » if (i && len) { 23 if (i && len) {
24 » » *buf = *f->rpos++; 24 *buf = *f->rpos++;
25 » » return 1; 25 return 1;
26 » } 26 }
27 » return 0; 27 return 0;
28 } 28 }
29 29
30 static long double wcstox(const wchar_t *s, wchar_t **p, int prec) 30 static long double wcstox(const wchar_t* s, wchar_t** p, int prec) {
31 { 31 wchar_t* t = (wchar_t*)s;
32 » wchar_t *t = (wchar_t *)s; 32 unsigned char buf[64];
33 » unsigned char buf[64]; 33 FILE f = {0};
34 » FILE f = {0}; 34 f.flags = 0;
35 » f.flags = 0; 35 f.rpos = f.rend = 0;
36 » f.rpos = f.rend = 0; 36 f.buf = buf + 4;
37 » f.buf = buf + 4; 37 f.buf_size = sizeof buf - 4;
38 » f.buf_size = sizeof buf - 4; 38 f.lock = -1;
39 » f.lock = -1; 39 f.read = do_read;
40 » f.read = do_read; 40 while (iswspace(*t))
41 » while (iswspace(*t)) t++; 41 t++;
42 » f.cookie = (void *)t; 42 f.cookie = (void*)t;
43 » shlim(&f, 0); 43 shlim(&f, 0);
44 » long double y = __floatscan(&f, prec, 1); 44 long double y = __floatscan(&f, prec, 1);
45 » if (p) { 45 if (p) {
46 » » size_t cnt = shcnt(&f); 46 size_t cnt = shcnt(&f);
47 » » *p = cnt ? t + cnt : (wchar_t *)s; 47 *p = cnt ? t + cnt : (wchar_t*)s;
48 » } 48 }
49 » return y; 49 return y;
50 } 50 }
51 51
52 float wcstof(const wchar_t *restrict s, wchar_t **restrict p) 52 float wcstof(const wchar_t* restrict s, wchar_t** restrict p) {
53 { 53 return wcstox(s, p, 0);
54 » return wcstox(s, p, 0);
55 } 54 }
56 55
57 double wcstod(const wchar_t *restrict s, wchar_t **restrict p) 56 double wcstod(const wchar_t* restrict s, wchar_t** restrict p) {
58 { 57 return wcstox(s, p, 1);
59 » return wcstox(s, p, 1);
60 } 58 }
61 59
62 long double wcstold(const wchar_t *restrict s, wchar_t **restrict p) 60 long double wcstold(const wchar_t* restrict s, wchar_t** restrict p) {
63 { 61 return wcstox(s, p, 2);
64 » return wcstox(s, p, 2);
65 } 62 }
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