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/* Verify that strcmp and strncmp calls with mixed constant and
non-constant strings are evaluated correctly.
{ dg-do run }
{ dg-options "-O2" } */
#include "strlenopt.h"
#define A(expr) \
((expr) \
? (void)0 \
: (__builtin_printf ("assertion failed on line %i: %s\n", \
__LINE__, #expr), \
__builtin_abort ()))
__attribute__ ((noclone, noinline)) int
test_strlen_gt2_strcmp_abcd (const char *s)
{
if (strlen (s) < 3)
return -1;
return strcmp (s, "abcd") == 0;
}
__attribute__ ((noclone, noinline)) int
test_strlen_lt6_strcmp_abcd (const char *s)
{
if (strlen (s) > 5)
return -1;
return strcmp (s, "abcd") == 0;
}
__attribute__ ((noclone, noinline)) int
test_strcpy_strcmp_abc (const char *s)
{
char a[5];
strcpy (a, s);
return strcmp (a, "abc") == 0;
}
__attribute__ ((noclone, noinline)) int
test_strcpy_abc_strcmp (const char *s)
{
char a[4], b[6];
strcpy (a, "abc");
strcpy (b, s);
return strcmp (a, b) == 0;
}
/* Exercise strcmp of two strings between 1 and 3 characters long
stored in arrays of the same known size. */
char ga4[4], gb4[4];
__attribute__ ((noclone, noinline)) int
test_store_0_nulterm_strcmp_same_size_arrays (void)
{
ga4[0] = gb4[0] = 'x';
ga4[3] = gb4[3] = '\0';
return strcmp (ga4, gb4) == 0;
}
__attribute__ ((noclone, noinline)) int
test_store_0_nulterm_strncmp_bound_2_same_size_arrays (void)
{
ga4[0] = gb4[0] = 'x';
ga4[3] = gb4[3] = '\0';
return strncmp (ga4, gb4, 2) == 0;
}
__attribute__ ((noclone, noinline)) int
test_store_0_nulterm_strncmp_bound_equal_same_size_arrays (void)
{
ga4[0] = gb4[0] = 'x';
ga4[3] = gb4[3] = '\0';
return strncmp (ga4, gb4, 4) == 0;
}
/* Exercise strcmp of two strings between 0 and 3 characters long
stored in arrays of the same known size. */
__attribute__ ((noclone, noinline)) int
test_nulterm_strcmp_same_size_arrays (void)
{
ga4[3] = gb4[3] = '\0';
return strcmp (ga4, gb4) == 0;
}
/* Exercise strcmp of two strings between 1 and 3 and 1 and 4 characters
long, respectively, stored in arrays of known but different sizes. */
char gc5[5];
__attribute__ ((noclone, noinline)) int
test_store_0_nulterm_strcmp_arrays (void)
{
ga4[0] = gc5[0] = 'x';
ga4[3] = gc5[4] = '\0';
return strcmp (ga4, gc5) == 0;
}
/* Exercise strcmp of two strings between 0 and 3 and 1 and 4 characters
long, respectively, stored in arrays of known but different sizes. */
__attribute__ ((noclone, noinline)) int
test_nulterm_strcmp_arrays (void)
{
ga4[3] = gc5[4] = '\0';
return strcmp (ga4, gc5) == 0;
}
__attribute__ ((noclone, noinline)) int
test_strcpy_strncmp_abcd (const char *s)
{
char a[6];
strcpy (a, s);
return strcmp (a, "abcd") == 0;
}
__attribute__ ((noclone, noinline)) int
test_strcpy_abcd_strncmp_3 (const char *s)
{
char a[6], b[8];
strcpy (a, "abcd");
strcpy (b, s);
return strncmp (a, b, 3) == 0;
}
__attribute__ ((noclone, noinline)) int
test_strcpy_abcd_strncmp_4 (const char *s)
{
char a[6], b[8];
strcpy (a, "abcd");
strcpy (b, s);
return strncmp (a, b, 4) == 0;
}
int main (void)
{
test_strlen_gt2_strcmp_abcd ("abcd");
test_strlen_lt6_strcmp_abcd ("abcd");
A (0 == test_strcpy_strcmp_abc ("ab"));
A (0 != test_strcpy_strcmp_abc ("abc"));
A (0 == test_strcpy_strcmp_abc ("abcd"));
A (0 == test_strcpy_abc_strcmp ("ab"));
A (0 != test_strcpy_abc_strcmp ("abc"));
A (0 == test_strcpy_abc_strcmp ("abcd"));
strcpy (ga4, "abc"); strcpy (gb4, "abd");
A (0 == test_store_0_nulterm_strcmp_same_size_arrays ());
strcpy (ga4, "abd"); strcpy (gb4, "abc");
A (0 == test_store_0_nulterm_strcmp_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "abc");
A (0 != test_store_0_nulterm_strcmp_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "acd");
A (0 == test_store_0_nulterm_strncmp_bound_2_same_size_arrays ());
strcpy (ga4, "acd"); strcpy (gb4, "abc");
A (0 == test_store_0_nulterm_strncmp_bound_2_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "abc");
A (0 != test_store_0_nulterm_strncmp_bound_2_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "abd");
A (0 == test_store_0_nulterm_strncmp_bound_equal_same_size_arrays ());
strcpy (ga4, "abd"); strcpy (gb4, "abc");
A (0 == test_store_0_nulterm_strncmp_bound_equal_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "abc");
A (0 != test_store_0_nulterm_strncmp_bound_equal_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "abd");
A (0 == test_nulterm_strcmp_same_size_arrays ());
strcpy (ga4, "abd"); strcpy (gb4, "abc");
A (0 == test_nulterm_strcmp_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gb4, "abc");
A (0 != test_nulterm_strcmp_same_size_arrays ());
strcpy (ga4, "abc"); strcpy (gc5, "abcd");
A (0 == test_store_0_nulterm_strcmp_arrays ());
strcpy (ga4, "abd"); strcpy (gc5, "abcd");
A (0 == test_store_0_nulterm_strcmp_arrays ());
strcpy (ga4, "abc"); strcpy (gc5, "abc");
A (0 != test_store_0_nulterm_strcmp_arrays ());
strcpy (ga4, "abc"); strcpy (gc5, "abcd");
A (0 == test_nulterm_strcmp_arrays ());
strcpy (ga4, "abd"); strcpy (gc5, "abc");
A (0 == test_nulterm_strcmp_arrays ());
strcpy (ga4, "abc"); strcpy (gc5, "abc");
A (0 != test_nulterm_strcmp_arrays ());
A (0 == test_strcpy_strncmp_abcd ("ab"));
A (0 == test_strcpy_strncmp_abcd ("abc"));
A (0 != test_strcpy_strncmp_abcd ("abcd"));
A (0 == test_strcpy_strncmp_abcd ("abcde"));
A (0 == test_strcpy_abcd_strncmp_3 ("ab"));
A (0 != test_strcpy_abcd_strncmp_3 ("abc"));
A (0 != test_strcpy_abcd_strncmp_3 ("abcd"));
A (0 != test_strcpy_abcd_strncmp_3 ("abcde"));
A (0 == test_strcpy_abcd_strncmp_4 ("ab"));
A (0 == test_strcpy_abcd_strncmp_4 ("abc"));
A (0 != test_strcpy_abcd_strncmp_4 ("abcd"));
A (0 != test_strcpy_abcd_strncmp_4 ("abcde"));
}
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