diff options
Diffstat (limited to 'stdio-common/bug16.c')
| -rw-r--r-- | stdio-common/bug16.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/stdio-common/bug16.c b/stdio-common/bug16.c index 42e37fa8b6..84269f3b6d 100644 --- a/stdio-common/bug16.c +++ b/stdio-common/bug16.c @@ -1,19 +1,42 @@ #include <stdio.h> #include <string.h> +struct +{ + long double val; + const char str[4][7]; +} tests[] = +{ + { 0x0.FFFFp+0L, { "0X1P+0", "0X2P-1", "0X4P-2", "0X8P-3" } }, + { 0x0.FFFFp+1L, { "0X1P+1", "0X2P+0", "0X4P-1", "0X8P-2" } }, + { 0x0.FFFFp+2L, { "0X1P+2", "0X2P+1", "0X4P+0", "0X8P-1" } }, + { 0x0.FFFFp+3L, { "0X1P+3", "0X2P+2", "0X4P+1", "0X8P+0" } } +}; + static int do_test (void) { char buf[100]; - snprintf (buf, sizeof (buf), "%.0LA", 0x0.FFFFp+0L); + int ret = 0; + + for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i) + { + snprintf (buf, sizeof (buf), "%.0LA", tests[i].val); + + size_t j; + for (j = 0; j < 4; ++j) + if (strcmp (buf, tests[i].str[j]) == 0) + break; - if (strcmp (buf, "0X1P+0") != 0) - { - printf ("got \"%s\", expected \"0X1P+0\"\n", buf); - return 1; + if (j == 4) + { + printf ("%zd: got \"%s\", expected \"%s\" or equivalent\n", + i, buf, tests[i].str[0]); + ret = 1; + } } - return 0; + return ret; } #define TEST_FUNCTION do_test () |