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Update.
1999-06-14 Geoff Keating <geoffk@ozemail.com.au> * stdlib/tst-strtoll.c: New file. * stdlib/Makefile (tests): Add tst-strtoll.c * stdlib/strtol.c: It is not generally true that if (unsigned)a*(unsigned)b overflows, then the result is less than 'a'.
This commit is contained in:
Ulrich Drepper
parent
540009244c
commit
61464e3e73
@ -1,3 +1,11 @@
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1999-06-14 Geoff Keating <geoffk@ozemail.com.au>
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* stdlib/tst-strtoll.c: New file.
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* stdlib/Makefile (tests): Add tst-strtoll.c
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* stdlib/strtol.c: It is not generally true that if
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(unsigned)a*(unsigned)b overflows, then the result is
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less than 'a'.
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1999-06-14 Thorsten Kukuk <kukuk@suse.de>
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* nscd/connections.c (handle_request): Only root is allowed to
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@ -1,4 +1,4 @@
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# Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
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# Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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@ -51,7 +51,7 @@ routines := \
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distribute := exit.h grouping.h abort-instr.h isomac.c
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tests := tst-strtol tst-strtod testmb testrand testsort testdiv \
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test-canon test-canon2
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test-canon test-canon2 tst-strtoll
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# Several mpn functions from GNU MP are used by the strtod function.
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173
stdlib/tst-strtoll.c
Normal file
173
stdlib/tst-strtoll.c
Normal file
@ -0,0 +1,173 @@
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/* My bet is this was written by Chris Torek.
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I reformatted and ansidecl-ized it, and tweaked it a little. */
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#include <ctype.h>
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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struct ltest
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{
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const char *str; /* Convert this. */
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unsigned long long int expect; /* To get this. */
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int base; /* Use this base. */
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char left; /* With this left over. */
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int err; /* And this in errno. */
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};
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static const struct ltest tests[] =
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{
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/* First, signed numbers: */
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/* simple... */
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{"123", 123, 0, 0, 0},
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{"+123", 123, 0, 0, 0},
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{" 123", 123, 0, 0, 0},
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{" 123 ", 123, 0, ' ', 0},
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{" -17", -17, 0, 0, 0},
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/* implicit base... */
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{"0123", 0123, 0, 0, 0},
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{"0123a", 0123, 0, 'a', 0},
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{"01239", 0123, 0, '9', 0},
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{"0x123", 0x123, 0, 0, 0},
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{"-0x123", -0x123, 0, 0, 0},
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{"0x0xc", 0, 0, 'x', 0},
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{" +0x123fg", 0x123f, 0, 'g', 0},
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/* explicit base... */
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{"123", 0x123, 16, 0, 0},
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{"0x123", 0x123, 16, 0, 0},
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{"123", 0123, 8, 0, 0},
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{"0123", 0123, 8, 0, 0},
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{"0123", 123, 10, 0, 0},
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{"0x123", 0, 10, 'x', 0},
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/* case insensitivity... */
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{"abcd", 0xabcd, 16, 0, 0},
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{"AbCd", 0xabcd, 16, 0, 0},
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{"0xABCD", 0xabcd, 16, 0, 0},
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{"0Xabcd", 0xabcd, 16, 0, 0},
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/* odd bases... */
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{"0xyz", 33 * 35 + 34, 35, 'z', 0},
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{"yz!", 34 * 36 + 35, 36, '!', 0},
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{"-yz", -(34*36 + 35), 36, 0, 0},
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{"GhI4", ((16*20 + 17)*20 + 18)*20 + 4, 20, 0, 0},
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/* special case for the 32-bit version of strtoll,
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from a ncftp configure test */
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{"99000000001", 1000000000ll * 99ll + 1ll, 0, 0},
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/* extremes... */
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{"9223372036854775807", 9223372036854775807ll, 0, 0, 0},
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{"9223372036854775808", 9223372036854775807ll, 0, 0, ERANGE},
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{"922337203685477580777", 9223372036854775807ll, 0, 0, ERANGE},
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{"9223372036854775810", 9223372036854775807ll, 0, 0, ERANGE},
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{"-2147483648", -2147483648ll, 0, 0, 0},
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{"-9223372036854775808", -9223372036854775808ll, 0, 0, 0},
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{"-9223372036854775809", -9223372036854775808ll, 0, 0, ERANGE},
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{"0x112233445566778899z", 9223372036854775807ll, 16, 'z', ERANGE},
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{NULL, 0, 0, 0, 0},
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/* Then unsigned. */
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{" 0", 0, 0, 0, 0},
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{"0xffffffffg", 0xffffffff, 0, 'g', 0},
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{"0xffffffffffffffffg", 0xffffffffffffffffull, 0, 'g', 0},
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{"-0xfedcba987654321", 0xf0123456789abcdfull, 0, 0, 0},
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{"0xf1f2f3f4f5f6f7f8f9", 0xffffffffffffffffull, 0, 0, ERANGE},
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{"-0x123456789abcdef01", 0xffffffffffffffffull, 0, 0, ERANGE},
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{NULL, 0, 0, 0, 0},
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};
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static void expand __P ((char *dst, int c));
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int
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main (int argc, char ** argv)
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{
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register const struct ltest *lt;
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char *ep;
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int status = 0;
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int save_errno;
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for (lt = tests; lt->str != NULL; ++lt)
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{
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register long long int l;
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errno = 0;
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l = strtoll (lt->str, &ep, lt->base);
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save_errno = errno;
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printf ("strtoll(\"%s\", , %d) test %u",
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lt->str, lt->base, (unsigned int) (lt - tests));
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if (l == (long long int) lt->expect && *ep == lt->left
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&& save_errno == lt->err)
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puts("\tOK");
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else
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{
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puts("\tBAD");
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if (l != (long long int) lt->expect)
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printf(" returns %lld, expected %lld\n",
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l, (long long int) lt->expect);
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if (lt->left != *ep)
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{
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char exp1[5], exp2[5];
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expand (exp1, *ep);
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expand (exp2, lt->left);
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printf (" leaves '%s', expected '%s'\n", exp1, exp2);
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}
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if (save_errno != lt->err)
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printf (" errno %d (%s) instead of %d (%s)\n",
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save_errno, strerror (save_errno),
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lt->err, strerror (lt->err));
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status = 1;
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}
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}
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for (++lt; lt->str != NULL; lt++)
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{
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register unsigned long long int ul;
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errno = 0;
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ul = strtoull (lt->str, &ep, lt->base);
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save_errno = errno;
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printf ("strtoull(\"%s\", , %d) test %u",
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lt->str, lt->base, (unsigned int) (lt - tests));
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if (ul == lt->expect && *ep == lt->left && save_errno == lt->err)
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puts("\tOK");
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else
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{
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puts ("\tBAD");
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if (ul != lt->expect)
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printf (" returns %llu, expected %llu\n",
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ul, lt->expect);
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if (lt->left != *ep)
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{
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char exp1[5], exp2[5];
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expand (exp1, *ep);
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expand (exp2, lt->left);
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printf (" leaves '%s', expected '%s'\n", exp1, exp2);
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}
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if (save_errno != lt->err)
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printf (" errno %d (%s) instead of %d (%s)\n",
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save_errno, strerror (save_errno),
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lt->err, strerror (lt->err));
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status = 1;
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}
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}
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exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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static void
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expand (dst, c)
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char *dst;
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int c;
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{
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if (isprint (c))
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{
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dst[0] = c;
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dst[1] = '\0';
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}
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else
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(void) sprintf (dst, "%#.3o", (unsigned int) c);
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}
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@ -348,6 +348,7 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
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if (sizeof (long int) != sizeof (LONG int))
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{
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unsigned long int j = 0;
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unsigned long int jmax = ULONG_MAX / base;
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for (;c != L_('\0'); c = *++s)
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{
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@ -362,18 +363,14 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
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if ((int) c >= base)
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break;
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/* Note that we never can have an overflow. */
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else
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else if (j >= jmax)
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{
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unsigned long int jj = j * (unsigned long int) base;
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if (jj < j)
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{
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/* We have an overflow. Now use the long representation. */
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i = (unsigned LONG int) j;
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goto use_long;
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}
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j = jj;
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j += c;
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/* We have an overflow. Now use the long representation. */
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i = (unsigned LONG int) j;
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goto use_long;
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}
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else
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j = j * (unsigned long int) base + c;
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}
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i = (unsigned LONG int) j;
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