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glibc/stdio-common/tst-sprintf.c
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#include <stdio.h> | |
#include <stdlib.h> | |
#include <locale.h> | |
#include <string.h> | |
#include <libc-internal.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" |