summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/internal/intparse.c116
-rw-r--r--src/internal/intparse.h11
-rw-r--r--src/stdlib/strtoimax.c38
-rw-r--r--src/stdlib/strtol.c62
-rw-r--r--src/stdlib/strtoll.c17
-rw-r--r--src/stdlib/strtoul.c17
-rw-r--r--src/stdlib/strtoull.c17
-rw-r--r--src/stdlib/strtoumax.c34
-rw-r--r--src/stdlib/wcstoimax.c39
-rw-r--r--src/stdlib/wcstol.c85
-rw-r--r--src/stdlib/wcstoll.c18
-rw-r--r--src/stdlib/wcstoul.c18
-rw-r--r--src/stdlib/wcstoull.c18
-rw-r--r--src/stdlib/wcstoumax.c35
14 files changed, 120 insertions, 405 deletions
diff --git a/src/internal/intparse.c b/src/internal/intparse.c
deleted file mode 100644
index fba38c0a..00000000
--- a/src/internal/intparse.c
+++ /dev/null
@@ -1,116 +0,0 @@
-#include <stdint.h>
-#include <limits.h>
-#include <stdlib.h>
-#include <errno.h>
-#include "intparse.h"
-
-/* Lookup table for digit values. -1==255>=36 -> invalid */
-static const unsigned char digits[] = {
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1,
--1,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,
-25,26,27,28,29,30,31,32,33,34,35,-1,-1,-1,-1,-1,
--1,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,
-25,26,27,28,29,30,31,32,33,34,35,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
--1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-};
-
-#define SLIM (UINT_MAX/36-1)
-
-int __intparse(struct intparse *v, const void *buf, size_t n)
-{
- const unsigned char *s = buf;
- int d, b = v->base;
- uintmax_t llim;
-
- v->cnt += n;
- for (; n; n--, s++) switch (v->state) {
- case 0:
- v->err = EINVAL;
- v->state++;
- if (*s=='+' || *s=='-') {
- v->neg = *s=='-';
- continue;
- }
- case 1:
- v->state++;
- if (*s=='0' && (!b || b==16)) continue;
- if (!b) v->base = b = 10;
- v->state++;
- goto firstdigit;
- case 2:
- v->state++;
- if ((!b || b==16) && (*s|32) == 'x') {
- v->err = 0;
- v->base = b = 16;
- continue;
- }
- if (!b) v->base = b = 8;
- goto seconddigit;
- case 3:
- firstdigit:
- if (digits[*s] >= b) {
- n++;
- goto finished;
- }
- seconddigit:
- v->err = 0;
- v->state++;
- case 4:
- if (b==10) {
- for (; n && *s-'0'<10U && v->small<=SLIM; n--, s++)
- v->small = v->small * 10 + (*s-'0');
- } else if ((b&-b) == b) {
- /* Compute bitshift for power-of-two bases
- * using a De Bruijn B(2,3) sequence. */
- int bs = "\0\1\2\4\7\3\6\5"[(0x17*b)>>5&7];
- for (; n && (d=digits[*s])<b && v->small<=SLIM; n--, s++)
- v->small = (v->small<<bs) + d;
- } else {
- for (; n && (d=digits[*s])<b && v->small<=SLIM; n--, s++)
- v->small = v->small * b + d;
- }
- if (!n) return 1;
- v->state++;
- v->val = v->small;
- case 5:
- if (b==10) {
- for (; n && *s-'0'<10U && v->val<=UINTMAX_MAX/10 && (*s-'0')<=UINTMAX_MAX-10*v->val; n--, s++)
- v->val = v->val * 10 + (*s-'0');
- } else if ((b&-b) == b) {
- int bs = "\0\1\2\4\7\3\6\5"[(0x17*b)>>5&7];
- llim = UINTMAX_MAX>>bs;
- for (; n && (d=digits[*s])<b && v->val<=llim; n--, s++)
- v->val = (v->val<<bs) + d;
- } else {
- llim = UINTMAX_MAX/b;
- for (; n && (d=digits[*s])<b && v->val<=llim && d<=UINTMAX_MAX-b*v->val; n--, s++)
- v->val = v->val * b + d;
- }
- if (!n) return 1;
- if (d >= b) goto finished;
- v->state++;
- case 6:
- if (n && digits[*s]<b) {
- v->err = ERANGE;
- v->val = UINTMAX_MAX;
- n--; s++;
- for (; n && digits[*s]<b; n--, s++);
- }
- if (!n) return 1;
- goto finished;
- }
- return 1;
-finished:
- v->cnt -= n;
- return 0;
-}
diff --git a/src/internal/intparse.h b/src/internal/intparse.h
deleted file mode 100644
index 78e800d1..00000000
--- a/src/internal/intparse.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <stdint.h>
-#include <stddef.h>
-
-struct intparse {
- uintmax_t val;
- unsigned small;
- size_t cnt;
- char neg, base, state, err;
-};
-
-int __intparse(struct intparse *, const void *, size_t);
diff --git a/src/stdlib/strtoimax.c b/src/stdlib/strtoimax.c
deleted file mode 100644
index 671aa287..00000000
--- a/src/stdlib/strtoimax.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <inttypes.h>
-#include <errno.h>
-#include <ctype.h>
-#include "intparse.h"
-
-intmax_t strtoimax(const char *s1, char **p, int base)
-{
- const unsigned char *s = (void *)s1;
- struct intparse ip = {0};
-
- if (p) *p = (char *)s1;
-
- if (base && base-2U > 34) {
- errno = EINVAL;
- return 0;
- }
-
- for (; isspace(*s); s++);
-
- ip.base = base;
- __intparse(&ip, s, SIZE_MAX);
-
- if (p && ip.err != EINVAL)
- *p = (char *)s + ip.cnt;
-
- if (ip.err) {
- errno = ip.err;
- if (ip.err == EINVAL) return 0;
- return ip.neg ? INTMAX_MIN : INTMAX_MAX;
- }
-
- if (ip.val > INTMAX_MAX) {
- if (!ip.neg || -ip.val != INTMAX_MIN)
- errno = ERANGE;
- return ip.neg ? INTMAX_MIN : INTMAX_MAX;
- }
- return ip.neg ? -ip.val : ip.val;
-}
diff --git a/src/stdlib/strtol.c b/src/stdlib/strtol.c
index ace820af..4a949cb0 100644
--- a/src/stdlib/strtol.c
+++ b/src/stdlib/strtol.c
@@ -1,17 +1,53 @@
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
+#include "stdio_impl.h"
+#include "intscan.h"
+#include "shgetc.h"
-long strtol(const char *s, char **p, int base)
+static unsigned long long strtox(const char *s, char **p, int base, unsigned long long lim)
{
- intmax_t x = strtoimax(s, p, base);
- if (x > LONG_MAX) {
- errno = ERANGE;
- return LONG_MAX;
- } else if (x < LONG_MIN) {
- errno = ERANGE;
- return LONG_MIN;
+ /* FIXME: use a helper function or macro to setup the FILE */
+ FILE f;
+ f.flags = 0;
+ f.buf = f.rpos = (void *)s;
+ if ((size_t)s > (size_t)-1/2)
+ f.rend = (void *)-1;
+ else
+ f.rend = (unsigned char *)s+(size_t)-1/2;
+ f.lock = -1;
+ shlim(&f, 0);
+ unsigned long long y = __intscan(&f, base, 1, lim);
+ if (p) {
+ size_t cnt = shcnt(&f);
+ *p = (char *)s + cnt;
}
- return x;
+ return y;
+}
+
+unsigned long long strtoull(const char *s, char **p, int base)
+{
+ return strtox(s, p, base, ULLONG_MAX);
+}
+
+long long strtoll(const char *s, char **p, int base)
+{
+ return strtox(s, p, base, LLONG_MIN);
+}
+
+unsigned long strtoul(const char *s, char **p, int base)
+{
+ return strtox(s, p, base, ULONG_MAX);
+}
+
+long strtol(const char *s, char **p, int base)
+{
+ return strtox(s, p, base, 0UL+LONG_MIN);
+}
+
+intmax_t strtoimax(const char *s, char **p, int base)
+{
+ return strtoll(s, p, base);
+}
+
+uintmax_t strtoumax(const char *s, char **p, int base)
+{
+ return strtoull(s, p, base);
}
diff --git a/src/stdlib/strtoll.c b/src/stdlib/strtoll.c
deleted file mode 100644
index 9ab66fd9..00000000
--- a/src/stdlib/strtoll.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
-
-long long strtoll(const char *s, char **p, int base)
-{
- intmax_t x = strtoimax(s, p, base);
- if (x > LLONG_MAX) {
- errno = ERANGE;
- return LLONG_MAX;
- } else if (x < LLONG_MIN) {
- errno = ERANGE;
- return LLONG_MIN;
- }
- return x;
-}
diff --git a/src/stdlib/strtoul.c b/src/stdlib/strtoul.c
deleted file mode 100644
index 20d8bfb2..00000000
--- a/src/stdlib/strtoul.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
-
-unsigned long strtoul(const char *s, char **p, int base)
-{
- intmax_t x;
- if (sizeof(intmax_t) == sizeof(long))
- return strtoumax(s, p, base);
- x = strtoimax(s, p, base);
- if (-x > ULONG_MAX || x > ULONG_MAX) {
- errno = ERANGE;
- return ULONG_MAX;
- }
- return x;
-}
diff --git a/src/stdlib/strtoull.c b/src/stdlib/strtoull.c
deleted file mode 100644
index 5d1c4ee5..00000000
--- a/src/stdlib/strtoull.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
-
-unsigned long long strtoull(const char *s, char **p, int base)
-{
- intmax_t x;
- if (sizeof(intmax_t) == sizeof(long long))
- return strtoumax(s, p, base);
- x = strtoimax(s, p, base);
- if (-x > ULLONG_MAX || x > ULLONG_MAX) {
- errno = ERANGE;
- return ULLONG_MAX;
- }
- return x;
-}
diff --git a/src/stdlib/strtoumax.c b/src/stdlib/strtoumax.c
deleted file mode 100644
index a299dc04..00000000
--- a/src/stdlib/strtoumax.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#include <inttypes.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <ctype.h>
-#include "intparse.h"
-
-uintmax_t strtoumax(const char *s1, char **p, int base)
-{
- const unsigned char *s = (void *)s1;
- struct intparse ip = {0};
-
- if (p) *p = (char *)s1;
-
- if (base && base-2U > 34) {
- errno = EINVAL;
- return 0;
- }
-
- for (; isspace(*s); s++);
-
- ip.base = base;
- __intparse(&ip, s, SIZE_MAX);
-
- if (p && ip.err != EINVAL)
- *p = (char *)s + ip.cnt;
-
- if (ip.err) {
- errno = ip.err;
- if (ip.err == EINVAL) return 0;
- return UINTMAX_MAX;
- }
-
- return ip.neg ? -ip.val : ip.val;
-}
diff --git a/src/stdlib/wcstoimax.c b/src/stdlib/wcstoimax.c
deleted file mode 100644
index 344fe3a3..00000000
--- a/src/stdlib/wcstoimax.c
+++ /dev/null
@@ -1,39 +0,0 @@
-#include <wchar.h>
-#include <wctype.h>
-#include <inttypes.h>
-#include <errno.h>
-#include "intparse.h"
-
-intmax_t wcstoimax(const wchar_t *s, wchar_t **p, int base)
-{
- const wchar_t *s1 = s;
- struct intparse ip = {0};
-
- if (p) *p = (wchar_t *)s;
-
- if (base && base-2U > 34) {
- errno = EINVAL;
- return 0;
- }
-
- for (; iswspace(*s); s++);
-
- ip.base = base;
- for (; __intparse(&ip, (char[]){(*s&-(*s<128U))}, 1); s++);
-
- if (p && ip.err != EINVAL)
- *p = (wchar_t *)s1 + ip.cnt;
-
- if (ip.err) {
- errno = ip.err;
- if (ip.err == EINVAL) return 0;
- return ip.neg ? INTMAX_MIN : INTMAX_MAX;
- }
-
- if (ip.val > INTMAX_MAX) {
- if (!ip.neg || -ip.val != INTMAX_MIN)
- errno = ERANGE;
- return ip.neg ? INTMAX_MIN : INTMAX_MAX;
- }
- return ip.neg ? -ip.val : ip.val;
-}
diff --git a/src/stdlib/wcstol.c b/src/stdlib/wcstol.c
index aad62e5b..cbdd8067 100644
--- a/src/stdlib/wcstol.c
+++ b/src/stdlib/wcstol.c
@@ -1,18 +1,75 @@
-#include <wchar.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
+#include "stdio_impl.h"
+#include "intscan.h"
+#include "shgetc.h"
-long wcstol(const wchar_t *s, wchar_t **p, int base)
+/* This read function heavily cheats. It knows:
+ * (1) len will always be 1
+ * (2) non-ascii characters don't matter */
+
+static size_t do_read(FILE *f, unsigned char *buf, size_t len)
+{
+ size_t i;
+ const wchar_t *wcs = f->cookie;
+
+ for (i=0; i<f->buf_size && wcs[i]; i++)
+ f->buf[i] = wcs[i] < 128 ? wcs[i] : '@';
+ f->rpos = f->buf;
+ f->rend = f->buf + i;
+ f->cookie = (void *)(wcs+i);
+
+ if (i && len) {
+ *buf = *f->rpos++;
+ return 1;
+ }
+ return 0;
+}
+
+static unsigned long long wcstox(const wchar_t *s, wchar_t **p, int base, unsigned long long lim)
{
- intmax_t x = wcstoimax(s, p, base);
- if (x > LONG_MAX) {
- errno = ERANGE;
- return LONG_MAX;
- } else if (x < LONG_MIN) {
- errno = ERANGE;
- return LONG_MIN;
+ unsigned char buf[64];
+ FILE f = {0};
+ f.flags = 0;
+ f.rpos = f.rend = 0;
+ f.buf = buf;
+ f.buf_size = sizeof buf;
+ f.lock = -1;
+ f.read = do_read;
+ f.cookie = (void *)s;
+ shlim(&f, 0);
+ unsigned long long y = __intscan(&f, base, 1, lim);
+ if (p) {
+ size_t cnt = shcnt(&f);
+ *p = (wchar_t *)s + cnt;
}
- return x;
+ return y;
+}
+
+unsigned long long wcstoull(const wchar_t *s, wchar_t **p, int base)
+{
+ return wcstox(s, p, base, ULLONG_MAX);
+}
+
+long long wcstoll(const wchar_t *s, wchar_t **p, int base)
+{
+ return wcstox(s, p, base, LLONG_MIN);
+}
+
+unsigned long wcstoul(const wchar_t *s, wchar_t **p, int base)
+{
+ return wcstox(s, p, base, ULONG_MAX);
+}
+
+long wcstol(const wchar_t *s, wchar_t **p, int base)
+{
+ return wcstox(s, p, base, 0UL+LONG_MIN);
+}
+
+intmax_t wcstoimax(const wchar_t *s, wchar_t **p, int base)
+{
+ return wcstoll(s, p, base);
+}
+
+uintmax_t wcstoumax(const wchar_t *s, wchar_t **p, int base)
+{
+ return wcstoull(s, p, base);
}
diff --git a/src/stdlib/wcstoll.c b/src/stdlib/wcstoll.c
deleted file mode 100644
index ddfea74b..00000000
--- a/src/stdlib/wcstoll.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <wchar.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
-
-long long wcstoll(const wchar_t *s, wchar_t **p, int base)
-{
- intmax_t x = wcstoimax(s, p, base);
- if (x > LLONG_MAX) {
- errno = ERANGE;
- return LLONG_MAX;
- } else if (x < LLONG_MIN) {
- errno = ERANGE;
- return LLONG_MIN;
- }
- return x;
-}
diff --git a/src/stdlib/wcstoul.c b/src/stdlib/wcstoul.c
deleted file mode 100644
index 9cbec1a8..00000000
--- a/src/stdlib/wcstoul.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <wchar.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
-
-unsigned long wcstoul(const wchar_t *s, wchar_t **p, int base)
-{
- intmax_t x;
- if (sizeof(intmax_t) == sizeof(long))
- return wcstoumax(s, p, base);
- x = wcstoimax(s, p, base);
- if (-x > ULONG_MAX || x > ULONG_MAX) {
- errno = ERANGE;
- return ULONG_MAX;
- }
- return x;
-}
diff --git a/src/stdlib/wcstoull.c b/src/stdlib/wcstoull.c
deleted file mode 100644
index 48c557db..00000000
--- a/src/stdlib/wcstoull.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <wchar.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <limits.h>
-
-unsigned long long wcstoull(const wchar_t *s, wchar_t **p, int base)
-{
- intmax_t x;
- if (sizeof(intmax_t) == sizeof(long long))
- return wcstoumax(s, p, base);
- x = wcstoimax(s, p, base);
- if (-x > ULLONG_MAX || x > ULLONG_MAX) {
- errno = ERANGE;
- return ULLONG_MAX;
- }
- return x;
-}
diff --git a/src/stdlib/wcstoumax.c b/src/stdlib/wcstoumax.c
deleted file mode 100644
index cee5ff7f..00000000
--- a/src/stdlib/wcstoumax.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include <wchar.h>
-#include <wctype.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <errno.h>
-#include "intparse.h"
-
-uintmax_t wcstoumax(const wchar_t *s, wchar_t **p, int base)
-{
- const wchar_t *s1 = s;
- struct intparse ip = {0};
-
- if (p) *p = (wchar_t *)s;
-
- if (base && base-2U > 34) {
- errno = EINVAL;
- return 0;
- }
-
- for (; iswspace(*s); s++);
-
- ip.base = base;
- for (; __intparse(&ip, (char[]){(*s&-(*s<128U))}, 1); s++);
-
- if (p && ip.err != EINVAL)
- *p = (wchar_t *)s1 + ip.cnt;
-
- if (ip.err) {
- errno = ip.err;
- if (ip.err == EINVAL) return 0;
- return UINTMAX_MAX;
- }
-
- return ip.neg ? -ip.val : ip.val;
-}
generated by cgit v1.2.1 (git 2.18.0) at 2025-10-31 23:11:08 +0000