summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Lib/test/test_builtin.py45
-rw-r--r--Lib/test/test_compile.py8
-rw-r--r--Lib/test/test_hexoct.py116
-rw-r--r--Lib/test/test_int_literal.py191
-rw-r--r--Objects/longobject.c15
-rw-r--r--Parser/tokenizer.c26
-rw-r--r--Python/mystrtoul.c60
7 files changed, 336 insertions, 125 deletions
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index 4057ba1..9fa973e 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -853,6 +853,12 @@ class BuiltinTest(unittest.TestCase):
self.assertRaises(ValueError, int, "0x", 16)
self.assertRaises(ValueError, int, "0x", 0)
+ self.assertRaises(ValueError, int, "0o", 8)
+ self.assertRaises(ValueError, int, "0o", 0)
+
+ self.assertRaises(ValueError, int, "0b", 2)
+ self.assertRaises(ValueError, int, "0b", 0)
+
# SF bug 1334662: int(string, base) wrong answers
# Various representations of 2**32 evaluated to 0
@@ -894,6 +900,45 @@ class BuiltinTest(unittest.TestCase):
self.assertEqual(int('2br45qb', 35), 4294967296L)
self.assertEqual(int('1z141z4', 36), 4294967296L)
+ # tests with base 0
+ # this fails on 3.0, but in 2.x the old octal syntax is allowed
+ self.assertEqual(int(' 0123 ', 0), 83)
+ self.assertEqual(int(' 0123 ', 0), 83)
+ self.assertEqual(int('000', 0), 0)
+ self.assertEqual(int('0o123', 0), 83)
+ self.assertEqual(int('0x123', 0), 291)
+ self.assertEqual(int('0b100', 0), 4)
+ self.assertEqual(int(' 0O123 ', 0), 83)
+ self.assertEqual(int(' 0X123 ', 0), 291)
+ self.assertEqual(int(' 0B100 ', 0), 4)
+
+ # without base still base 10
+ self.assertEqual(int('0123'), 123)
+ self.assertEqual(int('0123', 10), 123)
+
+ # tests with prefix and base != 0
+ self.assertEqual(int('0x123', 16), 291)
+ self.assertEqual(int('0o123', 8), 83)
+ self.assertEqual(int('0b100', 2), 4)
+ self.assertEqual(int('0X123', 16), 291)
+ self.assertEqual(int('0O123', 8), 83)
+ self.assertEqual(int('0B100', 2), 4)
+
+ # the code has special checks for the first character after the
+ # type prefix
+ self.assertRaises(ValueError, int, '0b2', 2)
+ self.assertRaises(ValueError, int, '0b02', 2)
+ self.assertRaises(ValueError, int, '0B2', 2)
+ self.assertRaises(ValueError, int, '0B02', 2)
+ self.assertRaises(ValueError, int, '0o8', 8)
+ self.assertRaises(ValueError, int, '0o08', 8)
+ self.assertRaises(ValueError, int, '0O8', 8)
+ self.assertRaises(ValueError, int, '0O08', 8)
+ self.assertRaises(ValueError, int, '0xg', 16)
+ self.assertRaises(ValueError, int, '0x0g', 16)
+ self.assertRaises(ValueError, int, '0Xg', 16)
+ self.assertRaises(ValueError, int, '0X0g', 16)
+
# SF bug 1334662: int(string, base) wrong answers
# Checks for proper evaluation of 2**32 + 1
self.assertEqual(int('100000000000000000000000000000001', 2), 4294967297L)
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index 367a694..465a90c 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -180,7 +180,9 @@ if 1:
def test_literals_with_leading_zeroes(self):
for arg in ["077787", "0xj", "0x.", "0e", "090000000000000",
- "080000000000000", "000000000000009", "000000000000008"]:
+ "080000000000000", "000000000000009", "000000000000008",
+ "0b42", "0BADCAFE", "0o123456789", "0b1.1", "0o4.2",
+ "0b101j2", "0o153j2", "0b100e1", "0o777e1"]:
self.assertRaises(SyntaxError, eval, arg)
self.assertEqual(eval("0777"), 511)
@@ -208,6 +210,10 @@ if 1:
self.assertEqual(eval("000000000000007"), 7)
self.assertEqual(eval("000000000000008."), 8.)
self.assertEqual(eval("000000000000009."), 9.)
+ self.assertEqual(eval("0b101010"), 42)
+ self.assertEqual(eval("-0b000000000010"), -2)
+ self.assertEqual(eval("0o777"), 511)
+ self.assertEqual(eval("-0o0000010"), -8)
def test_unary_minus(self):
# Verify treatment of unary minus on negative numbers SF bug #660455
diff --git a/Lib/test/test_hexoct.py b/Lib/test/test_hexoct.py
deleted file mode 100644
index f71dbe0..0000000
--- a/Lib/test/test_hexoct.py
+++ /dev/null
@@ -1,116 +0,0 @@
-"""Test correct treatment of hex/oct constants.
-
-This is complex because of changes due to PEP 237.
-"""
-
-import sys
-platform_long_is_32_bits = sys.maxint == 2147483647
-
-import unittest
-from test import test_support
-
-import warnings
-warnings.filterwarnings("ignore", "hex/oct constants", FutureWarning,
- "<string>")
-
-class TextHexOct(unittest.TestCase):
-
- def test_hex_baseline(self):
- # Baseline tests
- self.assertEqual(0x0, 0)
- self.assertEqual(0x10, 16)
- if platform_long_is_32_bits:
- self.assertEqual(0x7fffffff, 2147483647)
- else:
- self.assertEqual(0x7fffffffffffffff, 9223372036854775807)
- # Ditto with a minus sign and parentheses
- self.assertEqual(-(0x0), 0)
- self.assertEqual(-(0x10), -16)
- if platform_long_is_32_bits:
- self.assertEqual(-(0x7fffffff), -2147483647)
- else:
- self.assertEqual(-(0x7fffffffffffffff), -9223372036854775807)
- # Ditto with a minus sign and NO parentheses
- self.assertEqual(-0x0, 0)
- self.assertEqual(-0x10, -16)
- if platform_long_is_32_bits:
- self.assertEqual(-0x7fffffff, -2147483647)
- else:
- self.assertEqual(-0x7fffffffffffffff, -9223372036854775807)
-
- def test_hex_unsigned(self):
- if platform_long_is_32_bits:
- # Positive constants
- self.assertEqual(0x80000000, 2147483648L)
- self.assertEqual(0xffffffff, 4294967295L)
- # Ditto with a minus sign and parentheses
- self.assertEqual(-(0x80000000), -2147483648L)
- self.assertEqual(-(0xffffffff), -4294967295L)
- # Ditto with a minus sign and NO parentheses
- # This failed in Python 2.2 through 2.2.2 and in 2.3a1
- self.assertEqual(-0x80000000, -2147483648L)
- self.assertEqual(-0xffffffff, -4294967295L)
- else:
- # Positive constants
- self.assertEqual(0x8000000000000000, 9223372036854775808L)
- self.assertEqual(0xffffffffffffffff, 18446744073709551615L)
- # Ditto with a minus sign and parentheses
- self.assertEqual(-(0x8000000000000000), -9223372036854775808L)
- self.assertEqual(-(0xffffffffffffffff), -18446744073709551615L)
- # Ditto with a minus sign and NO parentheses
- # This failed in Python 2.2 through 2.2.2 and in 2.3a1
- self.assertEqual(-0x8000000000000000, -9223372036854775808L)
- self.assertEqual(-0xffffffffffffffff, -18446744073709551615L)
-
- def test_oct_baseline(self):
- # Baseline tests
- self.assertEqual(00, 0)
- self.assertEqual(020, 16)
- if platform_long_is_32_bits:
- self.assertEqual(017777777777, 2147483647)
- else:
- self.assertEqual(0777777777777777777777, 9223372036854775807)
- # Ditto with a minus sign and parentheses
- self.assertEqual(-(00), 0)
- self.assertEqual(-(020), -16)
- if platform_long_is_32_bits:
- self.assertEqual(-(017777777777), -2147483647)
- else:
- self.assertEqual(-(0777777777777777777777), -9223372036854775807)
- # Ditto with a minus sign and NO parentheses
- self.assertEqual(-00, 0)
- self.assertEqual(-020, -16)
- if platform_long_is_32_bits:
- self.assertEqual(-017777777777, -2147483647)
- else:
- self.assertEqual(-0777777777777777777777, -9223372036854775807)
-
- def test_oct_unsigned(self):
- if platform_long_is_32_bits:
- # Positive constants
- self.assertEqual(020000000000, 2147483648L)
- self.assertEqual(037777777777, 4294967295L)
- # Ditto with a minus sign and parentheses
- self.assertEqual(-(020000000000), -2147483648L)
- self.assertEqual(-(037777777777), -4294967295L)
- # Ditto with a minus sign and NO parentheses
- # This failed in Python 2.2 through 2.2.2 and in 2.3a1
- self.assertEqual(-020000000000, -2147483648L)
- self.assertEqual(-037777777777, -4294967295L)
- else:
- # Positive constants
- self.assertEqual(01000000000000000000000, 9223372036854775808L)
- self.assertEqual(01777777777777777777777, 18446744073709551615L)
- # Ditto with a minus sign and parentheses
- self.assertEqual(-(01000000000000000000000), -9223372036854775808L)
- self.assertEqual(-(01777777777777777777777), -18446744073709551615L)
- # Ditto with a minus sign and NO parentheses
- # This failed in Python 2.2 through 2.2.2 and in 2.3a1
- self.assertEqual(-01000000000000000000000, -9223372036854775808L)
- self.assertEqual(-01777777777777777777777, -18446744073709551615L)
-
-def test_main():
- test_support.run_unittest(TextHexOct)
-
-if __name__ == "__main__":
- test_main()
diff --git a/Lib/test/test_int_literal.py b/Lib/test/test_int_literal.py
new file mode 100644
index 0000000..f4f08ac
--- /dev/null
+++ b/Lib/test/test_int_literal.py
@@ -0,0 +1,191 @@
+"""Test correct treatment of hex/oct constants.
+
+This is complex because of changes due to PEP 237.
+"""
+
+import unittest
+from test import test_support
+
+import warnings
+warnings.filterwarnings("ignore", "hex/oct constants", FutureWarning,
+ "<string>")
+
+class TextHexOctBin(unittest.TestCase):
+
+ def test_hex_baseline(self):
+ # A few upper/lowercase tests
+ self.assertEqual(0x0, 0X0)
+ self.assertEqual(0x1, 0X1)
+ self.assertEqual(0x123456789abcdef, 0X123456789abcdef)
+ # Baseline tests
+ self.assertEqual(0x0, 0)
+ self.assertEqual(0x10, 16)
+ self.assertEqual(0x7fffffff, 2147483647)
+ self.assertEqual(0x7fffffffffffffff, 9223372036854775807)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0x0), 0)
+ self.assertEqual(-(0x10), -16)
+ self.assertEqual(-(0x7fffffff), -2147483647)
+ self.assertEqual(-(0x7fffffffffffffff), -9223372036854775807)
+ # Ditto with a minus sign and NO parentheses
+ self.assertEqual(-0x0, 0)
+ self.assertEqual(-0x10, -16)
+ self.assertEqual(-0x7fffffff, -2147483647)
+ self.assertEqual(-0x7fffffffffffffff, -9223372036854775807)
+
+ def test_hex_unsigned(self):
+ # Positive constants
+ self.assertEqual(0x80000000, 2147483648L)
+ self.assertEqual(0xffffffff, 4294967295L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0x80000000), -2147483648L)
+ self.assertEqual(-(0xffffffff), -4294967295L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-0x80000000, -2147483648L)
+ self.assertEqual(-0xffffffff, -4294967295L)
+
+ # Positive constants
+ self.assertEqual(0x8000000000000000, 9223372036854775808L)
+ self.assertEqual(0xffffffffffffffff, 18446744073709551615L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0x8000000000000000), -9223372036854775808L)
+ self.assertEqual(-(0xffffffffffffffff), -18446744073709551615L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-0x8000000000000000, -9223372036854775808L)
+ self.assertEqual(-0xffffffffffffffff, -18446744073709551615L)
+
+ def test_oct_baseline(self):
+ # Baseline tests
+ self.assertEqual(00, 0)
+ self.assertEqual(020, 16)
+ self.assertEqual(017777777777, 2147483647)
+ self.assertEqual(0777777777777777777777, 9223372036854775807)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(00), 0)
+ self.assertEqual(-(020), -16)
+ self.assertEqual(-(017777777777), -2147483647)
+ self.assertEqual(-(0777777777777777777777), -9223372036854775807)
+ # Ditto with a minus sign and NO parentheses
+ self.assertEqual(-00, 0)
+ self.assertEqual(-020, -16)
+ self.assertEqual(-017777777777, -2147483647)
+ self.assertEqual(-0777777777777777777777, -9223372036854775807)
+
+ def test_oct_baseline_new(self):
+ # A few upper/lowercase tests
+ self.assertEqual(0o0, 0O0)
+ self.assertEqual(0o1, 0O1)
+ self.assertEqual(0o1234567, 0O1234567)
+ # Baseline tests
+ self.assertEqual(0o0, 0)
+ self.assertEqual(0o20, 16)
+ self.assertEqual(0o17777777777, 2147483647)
+ self.assertEqual(0o777777777777777777777, 9223372036854775807)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0o0), 0)
+ self.assertEqual(-(0o20), -16)
+ self.assertEqual(-(0o17777777777), -2147483647)
+ self.assertEqual(-(0o777777777777777777777), -9223372036854775807)
+ # Ditto with a minus sign and NO parentheses
+ self.assertEqual(-0o0, 0)
+ self.assertEqual(-0o20, -16)
+ self.assertEqual(-0o17777777777, -2147483647)
+ self.assertEqual(-0o777777777777777777777, -9223372036854775807)
+
+ def test_oct_unsigned(self):
+ # Positive constants
+ self.assertEqual(020000000000, 2147483648L)
+ self.assertEqual(037777777777, 4294967295L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(020000000000), -2147483648L)
+ self.assertEqual(-(037777777777), -4294967295L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-020000000000, -2147483648L)
+ self.assertEqual(-037777777777, -4294967295L)
+
+ # Positive constants
+ self.assertEqual(01000000000000000000000, 9223372036854775808L)
+ self.assertEqual(01777777777777777777777, 18446744073709551615L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(01000000000000000000000), -9223372036854775808L)
+ self.assertEqual(-(01777777777777777777777), -18446744073709551615L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-01000000000000000000000, -9223372036854775808L)
+ self.assertEqual(-01777777777777777777777, -18446744073709551615L)
+
+ def test_oct_unsigned_new(self):
+ # Positive constants
+ self.assertEqual(0o20000000000, 2147483648L)
+ self.assertEqual(0o37777777777, 4294967295L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0o20000000000), -2147483648L)
+ self.assertEqual(-(0o37777777777), -4294967295L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-0o20000000000, -2147483648L)
+ self.assertEqual(-0o37777777777, -4294967295L)
+
+ # Positive constants
+ self.assertEqual(0o1000000000000000000000, 9223372036854775808L)
+ self.assertEqual(0o1777777777777777777777, 18446744073709551615L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0o1000000000000000000000), -9223372036854775808L)
+ self.assertEqual(-(0o1777777777777777777777), -18446744073709551615L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-0o1000000000000000000000, -9223372036854775808L)
+ self.assertEqual(-0o1777777777777777777777, -18446744073709551615L)
+
+ def test_bin_baseline(self):
+ # A few upper/lowercase tests
+ self.assertEqual(0b0, 0B0)
+ self.assertEqual(0b1, 0B1)
+ self.assertEqual(0b10101010101, 0B10101010101)
+ # Baseline tests
+ self.assertEqual(0b0, 0)
+ self.assertEqual(0b10000, 16)
+ self.assertEqual(0b1111111111111111111111111111111, 2147483647)
+ self.assertEqual(0b111111111111111111111111111111111111111111111111111111111111111, 9223372036854775807)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0b0), 0)
+ self.assertEqual(-(0b10000), -16)
+ self.assertEqual(-(0b1111111111111111111111111111111), -2147483647)
+ self.assertEqual(-(0b111111111111111111111111111111111111111111111111111111111111111), -9223372036854775807)
+ # Ditto with a minus sign and NO parentheses
+ self.assertEqual(-0b0, 0)
+ self.assertEqual(-0b10000, -16)
+ self.assertEqual(-0b1111111111111111111111111111111, -2147483647)
+ self.assertEqual(-0b111111111111111111111111111111111111111111111111111111111111111, -9223372036854775807)
+
+ def test_bin_unsigned(self):
+ # Positive constants
+ self.assertEqual(0b10000000000000000000000000000000, 2147483648L)
+ self.assertEqual(0b11111111111111111111111111111111, 4294967295L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0b10000000000000000000000000000000), -2147483648L)
+ self.assertEqual(-(0b11111111111111111111111111111111), -4294967295L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-0b10000000000000000000000000000000, -2147483648L)
+ self.assertEqual(-0b11111111111111111111111111111111, -4294967295L)
+
+ # Positive constants
+ self.assertEqual(0b1000000000000000000000000000000000000000000000000000000000000000, 9223372036854775808L)
+ self.assertEqual(0b1111111111111111111111111111111111111111111111111111111111111111, 18446744073709551615L)
+ # Ditto with a minus sign and parentheses
+ self.assertEqual(-(0b1000000000000000000000000000000000000000000000000000000000000000), -9223372036854775808L)
+ self.assertEqual(-(0b1111111111111111111111111111111111111111111111111111111111111111), -18446744073709551615L)
+ # Ditto with a minus sign and NO parentheses
+ # This failed in Python 2.2 through 2.2.2 and in 2.3a1
+ self.assertEqual(-0b1000000000000000000000000000000000000000000000000000000000000000, -9223372036854775808L)
+ self.assertEqual(-0b1111111111111111111111111111111111111111111111111111111111111111, -18446744073709551615L)
+
+def test_main():
+ test_support.run_unittest(TextHexOctBin)
+
+if __name__ == "__main__":
+ test_main()
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 46ed713..afa1b75 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -1465,14 +1465,27 @@ PyLong_FromString(char *str, char **pend, int base)
while (*str != '\0' && isspace(Py_CHARMASK(*str)))
str++;
if (base == 0) {
+ /* No base given. Deduce the base from the contents
+ of the string */
if (str[0] != '0')
base = 10;
else if (str[1] == 'x' || str[1] == 'X')
base = 16;
+ else if (str[1] == 'o' || str[1] == 'O')
+ base = 8;
+ else if (str[1] == 'b' || str[1] == 'B')
+ base = 2;
else
+ /* "old" (C-style) octal literal, still valid in
+ 2.x, although illegal in 3.x */
base = 8;
}
- if (base == 16 && str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
+ /* Whether or not we were deducing the base, skip leading chars
+ as needed */
+ if (str[0] == '0' &&
+ ((base == 16 && (str[1] == 'x' || str[1] == 'X')) ||
+ (base == 8 && (str[1] == 'o' || str[1] == 'O')) ||
+ (base == 2 && (str[1] == 'b' || str[1] == 'B'))))
str += 2;
start = str;
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index 1314f5f..6df3005 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -1335,7 +1335,7 @@ tok_get(register struct tok_state *tok, char **p_start, char **p_end)
/* Number */
if (isdigit(c)) {
if (c == '0') {
- /* Hex or octal -- maybe. */
+ /* Hex, octal or binary -- maybe. */
c = tok_nextc(tok);
if (c == '.')
goto fraction;
@@ -1356,6 +1356,30 @@ tok_get(register struct tok_state *tok, char **p_start, char **p_end)
c = tok_nextc(tok);
} while (isxdigit(c));
}
+ else if (c == 'o' || c == 'O') {
+ /* Octal */
+ c = tok_nextc(tok);
+ if (c < '0' || c > '8') {
+ tok->done = E_TOKEN;
+ tok_backup(tok, c);
+ return ERRORTOKEN;
+ }
+ do {
+ c = tok_nextc(tok);
+ } while ('0' <= c && c < '8');
+ }
+ else if (c == 'b' || c == 'B') {
+ /* Binary */
+ c = tok_nextc(tok);
+ if (c != '0' && c != '1') {
+ tok->done = E_TOKEN;
+ tok_backup(tok, c);
+ return ERRORTOKEN;
+ }
+ do {
+ c = tok_nextc(tok);
+ } while (c == '0' || c == '1');
+ }
else {
int found_decimal = 0;
/* Octal; c is first char of it */
diff --git a/Python/mystrtoul.c b/Python/mystrtoul.c
index cb3c012..ebd468c 100644
--- a/Python/mystrtoul.c
+++ b/Python/mystrtoul.c
@@ -83,9 +83,9 @@ static int digitlimit[] = {
** This is a general purpose routine for converting
** an ascii string to an integer in an arbitrary base.
** Leading white space is ignored. If 'base' is zero
-** it looks for a leading 0, 0x or 0X to tell which
-** base. If these are absent it defaults to 10.
-** Base must be 0 or between 2 and 36 (inclusive).
+** it looks for a leading 0, 0b, 0B, 0o, 0O, 0x or 0X
+** to tell which base. If these are absent it defaults
+** to 10. Base must be 0 or between 2 and 36 (inclusive).
** If 'ptr' is non-NULL it will contain a pointer to
** the end of the scan.
** Errors due to bad pointers will probably result in
@@ -104,7 +104,7 @@ PyOS_strtoul(register char *str, char **ptr, int base)
/* check for leading 0 or 0x for auto-base or base 16 */
switch (base) {
- case 0: /* look for leading 0, 0x or 0X */
+ case 0: /* look for leading 0, 0b, 0o or 0x */
if (*str == '0') {
++str;
if (*str == 'x' || *str == 'X') {
@@ -116,14 +116,62 @@ PyOS_strtoul(register char *str, char **ptr, int base)
}
++str;
base = 16;
- }
- else
+ } else if (*str == 'o' || *str == 'O') {
+ /* there must be at least one digit after 0o */
+ if (_PyLong_DigitValue[Py_CHARMASK(str[1])] >= 8) {
+ if (ptr)
+ *ptr = str;
+ return 0;
+ }
+ ++str;
+ base = 8;
+ } else if (*str == 'b' || *str == 'B') {
+ /* there must be at least one digit after 0b */
+ if (_PyLong_DigitValue[Py_CHARMASK(str[1])] >= 2) {
+ if (ptr)
+ *ptr = str;
+ return 0;
+ }
+ ++str;
+ base = 2;
+ } else {
base = 8;
+ }
}
else
base = 10;
break;
+ case 2: /* skip leading 0b or 0B */
+ if (*str == '0') {
+ ++str;
+ if (*str == 'b' || *str == 'B') {
+ /* there must be at least one digit after 0b */
+ if (_PyLong_DigitValue[Py_CHARMASK(str[1])] >= 2) {
+ if (ptr)
+ *ptr = str;
+ return 0;
+ }
+ ++str;
+ }
+ }
+ break;
+
+ case 8: /* skip leading 0o or 0O */
+ if (*str == '0') {
+ ++str;
+ if (*str == 'o' || *str == 'O') {
+ /* there must be at least one digit after 0o */
+ if (_PyLong_DigitValue[Py_CHARMASK(str[1])] >= 8) {
+ if (ptr)
+ *ptr = str;
+ return 0;
+ }
+ ++str;
+ }
+ }
+ break;
+
case 16: /* skip leading 0x or 0X */
if (*str == '0') {
++str;
generated by cgit v0.12 at 2025-03-04 18:33:09 (GMT)