diff options
Diffstat (limited to 'REORG.TODO/stdio-common/tst-sprintf.c')
-rw-r--r-- | REORG.TODO/stdio-common/tst-sprintf.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/tst-sprintf.c b/REORG.TODO/stdio-common/tst-sprintf.c new file mode 100644 index 0000000000..cbd35447a9 --- /dev/null +++ b/REORG.TODO/stdio-common/tst-sprintf.c @@ -0,0 +1,90 @@ +#include <stdio.h> +#include <stdlib.h> +#include <locale.h> +#include <string.h> +#include <libc-diag.h> + + +static int +do_test (void) +{ + char buf[100]; + int result = 0; + + if (sprintf (buf, "%.0ls", L"foo") != 0 + || strlen (buf) != 0) + { + puts ("sprintf (buf, \"%.0ls\", L\"foo\") produced some output"); + result = 1; + } + +#define SIZE (1024*70000) +#define STR(x) #x + + char *dst = malloc (SIZE + 1); + + if (dst == NULL) + { + puts ("memory allocation failure"); + result = 1; + } + else + { + sprintf (dst, "%*s", SIZE, ""); + if (strnlen (dst, SIZE + 1) != SIZE) + { + puts ("sprintf (dst, \"%*s\", " STR(SIZE) ", \"\") did not produce enough output"); + result = 1; + } + free (dst); + } + + if (sprintf (buf, "%1$d%3$.*2$s%4$d", 7, 67108863, "x", 8) != 3 + || strcmp (buf, "7x8") != 0) + { + printf ("sprintf (buf, \"%%1$d%%3$.*2$s%%4$d\", 7, 67108863, \"x\", 8) produced `%s' output", buf); + result = 1; + } + + /* We are testing a corner case of the sprintf format string here. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); + int n = sprintf (buf, "%67108863.16\"%d", 7); + DIAG_POP_NEEDS_COMMENT; + + if (n != 14 || strcmp (buf, "%67108863.16\"7") != 0) + { + printf ("sprintf (buf, \"%%67108863.16\\\"%%d\", 7) produced `%s' output", + buf); + result = 1; + } + + /* We are testing a corner case of the sprintf format string here. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); + n = sprintf (buf, "%*\"%d", 0x3ffffff, 7); + DIAG_POP_NEEDS_COMMENT; + + if (n != 11 || strcmp (buf, "%67108863\"7") != 0) + { + printf ("sprintf (buf, \"%%*\\\"%%d\", 0x3ffffff, 7) produced `%s' output", buf); + result = 1; + } + + if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL) + { + puts ("cannot set locale"); + result = 1; + } + else if (sprintf (buf, "%.8s\n", "Foo: \277") != 7 + || strcmp (buf, "Foo: \277\n") != 0) + { + printf ("sprintf (buf, \"%%.8s\\n\", \"Foo: \\277\") produced '%s' output\n", buf); + result = 1; + } + + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |