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authorUlrich Drepper <drepper@redhat.com>1999-06-15 12:07:01 +0000
committerUlrich Drepper <drepper@redhat.com>1999-06-15 12:07:01 +0000
commit61464e3e737575c2f0df89866a32ff546b066fa1 (patch)
tree4a5f92f880328fd6f01d76d5024f1ba0aabfd467 /stdlib/tst-strtoll.c
parent540009244c7c9f1aec64af6fb1efba7245ed8bb3 (diff)
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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'.
Diffstat (limited to 'stdlib/tst-strtoll.c')
-rw-r--r--stdlib/tst-strtoll.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/stdlib/tst-strtoll.c b/stdlib/tst-strtoll.c
new file mode 100644
index 0000000000..4d434d5317
--- /dev/null
+++ b/stdlib/tst-strtoll.c
@@ -0,0 +1,173 @@
+/* My bet is this was written by Chris Torek.
+ I reformatted and ansidecl-ized it, and tweaked it a little. */
+
+#include <ctype.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+struct ltest
+ {
+ const char *str; /* Convert this. */
+ unsigned long long int expect; /* To get this. */
+ int base; /* Use this base. */
+ char left; /* With this left over. */
+ int err; /* And this in errno. */
+ };
+static const struct ltest tests[] =
+ {
+ /* First, signed numbers: */
+ /* simple... */
+ {"123", 123, 0, 0, 0},
+ {"+123", 123, 0, 0, 0},
+ {" 123", 123, 0, 0, 0},
+ {" 123 ", 123, 0, ' ', 0},
+ {" -17", -17, 0, 0, 0},
+
+ /* implicit base... */
+ {"0123", 0123, 0, 0, 0},
+ {"0123a", 0123, 0, 'a', 0},
+ {"01239", 0123, 0, '9', 0},
+ {"0x123", 0x123, 0, 0, 0},
+ {"-0x123", -0x123, 0, 0, 0},
+ {"0x0xc", 0, 0, 'x', 0},
+ {" +0x123fg", 0x123f, 0, 'g', 0},
+
+ /* explicit base... */
+ {"123", 0x123, 16, 0, 0},
+ {"0x123", 0x123, 16, 0, 0},
+ {"123", 0123, 8, 0, 0},
+ {"0123", 0123, 8, 0, 0},
+ {"0123", 123, 10, 0, 0},
+ {"0x123", 0, 10, 'x', 0},
+
+ /* case insensitivity... */
+ {"abcd", 0xabcd, 16, 0, 0},
+ {"AbCd", 0xabcd, 16, 0, 0},
+ {"0xABCD", 0xabcd, 16, 0, 0},
+ {"0Xabcd", 0xabcd, 16, 0, 0},
+
+ /* odd bases... */
+ {"0xyz", 33 * 35 + 34, 35, 'z', 0},
+ {"yz!", 34 * 36 + 35, 36, '!', 0},
+ {"-yz", -(34*36 + 35), 36, 0, 0},
+ {"GhI4", ((16*20 + 17)*20 + 18)*20 + 4, 20, 0, 0},
+
+ /* special case for the 32-bit version of strtoll,
+ from a ncftp configure test */
+ {"99000000001", 1000000000ll * 99ll + 1ll, 0, 0},
+
+ /* extremes... */
+ {"9223372036854775807", 9223372036854775807ll, 0, 0, 0},
+ {"9223372036854775808", 9223372036854775807ll, 0, 0, ERANGE},
+ {"922337203685477580777", 9223372036854775807ll, 0, 0, ERANGE},
+ {"9223372036854775810", 9223372036854775807ll, 0, 0, ERANGE},
+ {"-2147483648", -2147483648ll, 0, 0, 0},
+ {"-9223372036854775808", -9223372036854775808ll, 0, 0, 0},
+ {"-9223372036854775809", -9223372036854775808ll, 0, 0, ERANGE},
+ {"0x112233445566778899z", 9223372036854775807ll, 16, 'z', ERANGE},
+ {NULL, 0, 0, 0, 0},
+
+ /* Then unsigned. */
+ {" 0", 0, 0, 0, 0},
+ {"0xffffffffg", 0xffffffff, 0, 'g', 0},
+ {"0xffffffffffffffffg", 0xffffffffffffffffull, 0, 'g', 0},
+ {"-0xfedcba987654321", 0xf0123456789abcdfull, 0, 0, 0},
+ {"0xf1f2f3f4f5f6f7f8f9", 0xffffffffffffffffull, 0, 0, ERANGE},
+ {"-0x123456789abcdef01", 0xffffffffffffffffull, 0, 0, ERANGE},
+ {NULL, 0, 0, 0, 0},
+ };
+
+static void expand __P ((char *dst, int c));
+
+int
+main (int argc, char ** argv)
+{
+ register const struct ltest *lt;
+ char *ep;
+ int status = 0;
+ int save_errno;
+
+ for (lt = tests; lt->str != NULL; ++lt)
+ {
+ register long long int l;
+
+ errno = 0;
+ l = strtoll (lt->str, &ep, lt->base);
+ save_errno = errno;
+ printf ("strtoll(\"%s\", , %d) test %u",
+ lt->str, lt->base, (unsigned int) (lt - tests));
+ if (l == (long long int) lt->expect && *ep == lt->left
+ && save_errno == lt->err)
+ puts("\tOK");
+ else
+ {
+ puts("\tBAD");
+ if (l != (long long int) lt->expect)
+ printf(" returns %lld, expected %lld\n",
+ l, (long long int) lt->expect);
+ if (lt->left != *ep)
+ {
+ char exp1[5], exp2[5];
+ expand (exp1, *ep);
+ expand (exp2, lt->left);
+ printf (" leaves '%s', expected '%s'\n", exp1, exp2);
+ }
+ if (save_errno != lt->err)
+ printf (" errno %d (%s) instead of %d (%s)\n",
+ save_errno, strerror (save_errno),
+ lt->err, strerror (lt->err));
+ status = 1;
+ }
+ }
+
+ for (++lt; lt->str != NULL; lt++)
+ {
+ register unsigned long long int ul;
+
+ errno = 0;
+ ul = strtoull (lt->str, &ep, lt->base);
+ save_errno = errno;
+ printf ("strtoull(\"%s\", , %d) test %u",
+ lt->str, lt->base, (unsigned int) (lt - tests));
+ if (ul == lt->expect && *ep == lt->left && save_errno == lt->err)
+ puts("\tOK");
+ else
+ {
+ puts ("\tBAD");
+ if (ul != lt->expect)
+ printf (" returns %llu, expected %llu\n",
+ ul, lt->expect);
+ if (lt->left != *ep)
+ {
+ char exp1[5], exp2[5];
+ expand (exp1, *ep);
+ expand (exp2, lt->left);
+ printf (" leaves '%s', expected '%s'\n", exp1, exp2);
+ }
+ if (save_errno != lt->err)
+ printf (" errno %d (%s) instead of %d (%s)\n",
+ save_errno, strerror (save_errno),
+ lt->err, strerror (lt->err));
+ status = 1;
+ }
+ }
+
+ exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
+}
+
+static void
+expand (dst, c)
+ char *dst;
+ int c;
+{
+ if (isprint (c))
+ {
+ dst[0] = c;
+ dst[1] = '\0';
+ }
+ else
+ (void) sprintf (dst, "%#.3o", (unsigned int) c);
+}