#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#define TEST(r, f, x, m) uassert_int_equal(f, x)
#define TEST2(r, f, x, m) uassert_int_equal(f, x)
#define TEST3(r, f, x, m) uassert_int_not_equal(f, x)

#include <utest.h>
#define ERANGE          34
#define EINVAL          22

int strtol_entry(void)
{
    __attribute__((unused)) int i;
    __attribute__((unused)) long l;
    __attribute__((unused)) unsigned long ul;
    __attribute__((unused)) long long ll;
    __attribute__((unused)) unsigned long long ull;
    __attribute__((unused)) char *msg = "";
    __attribute__((unused)) char *s, *c;

    TEST(l, atol("2147483647"), 2147483647L, "max 32bit signed %ld != %ld");
    TEST(l, strtol("2147483647", 0, 0), 2147483647L, "max 32bit signed %ld != %ld");
    TEST(ul, strtoul("4294967295", 0, 0), 4294967295UL, "max 32bit unsigned %lu != %lu");

    if (sizeof(long) == 4)
    {
        TEST(l, strtol(s = "2147483648", &c, 0), 2147483647L, "uncaught overflow %ld != %ld");
        TEST2(i, c - s, 10, "wrong final position %d != %d");
        TEST(l, strtol(s = "-2147483649", &c, 0), -2147483647L - 1, "uncaught overflow %ld != %ld");
        TEST2(i, c - s, 11, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "4294967296", &c, 0), 4294967295UL, "uncaught overflow %lu != %lu");
        TEST2(i, c - s, 10, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-1", &c, 0), -1UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 2, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-2", &c, 0), -2UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 2, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-2147483648", &c, 0), -2147483648UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 11, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-2147483649", &c, 0), -2147483649UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 11, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-4294967296", &c, 0), 4294967295UL, "uncaught negative overflow %lu != %lu");
        TEST2(i, c - s, 11, "wrong final position %d != %d");
    }
    else if (sizeof(long) == 8)
    {
        TEST(l, strtol(s = "9223372036854775808", &c, 0), 9223372036854775807L, "uncaught overflow %ld != %ld");
        TEST2(i, c - s, 19, "wrong final position %d != %d");
        TEST(l, strtol(s = "-9223372036854775809", &c, 0), -9223372036854775807L - 1, "uncaught overflow %ld != %ld");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "18446744073709551616", &c, 0), 18446744073709551615UL, "uncaught overflow %lu != %lu");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-1", &c, 0), -1UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 2, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-2", &c, 0), -2UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 2, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-9223372036854775808", &c, 0), -9223372036854775808UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-9223372036854775809", &c, 0), -9223372036854775809UL, "rejected negative %lu != %lu");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ul, strtoul(s = "-18446744073709551616", &c, 0), 18446744073709551615UL, "uncaught negative overflow %lu != %lu");
        TEST2(i, c - s, 21, "wrong final position %d != %d");
    }
    else
    {
        printf("sizeof(long) == %d, not implemented\n", (int)sizeof(long));
    }

    if (sizeof(long long) == 8)
    {
        TEST(ll, strtoll(s = "9223372036854775808", &c, 0), 9223372036854775807LL, "uncaught overflow %lld != %lld");
        TEST2(i, c - s, 19, "wrong final position %d != %d");
        TEST(ll, strtoll(s = "-9223372036854775809", &c, 0), -9223372036854775807LL - 1, "uncaught overflow %lld != %lld");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ull, strtoull(s = "18446744073709551616", &c, 0), 18446744073709551615ULL, "uncaught overflow %llu != %llu");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ull, strtoull(s = "-1", &c, 0), -1ULL, "rejected negative %llu != %llu");
        TEST2(i, c - s, 2, "wrong final position %d != %d");
        TEST(ull, strtoull(s = "-2", &c, 0), -2ULL, "rejected negative %llu != %llu");
        TEST2(i, c - s, 2, "wrong final position %d != %d");
        TEST(ull, strtoull(s = "-9223372036854775808", &c, 0), -9223372036854775808ULL, "rejected negative %llu != %llu");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ull, strtoull(s = "-9223372036854775809", &c, 0), -9223372036854775809ULL, "rejected negative %llu != %llu");
        TEST2(i, c - s, 20, "wrong final position %d != %d");
        TEST(ull, strtoull(s = "-18446744073709551616", &c, 0), 18446744073709551615ULL, "uncaught negative overflow %llu != %llu");
        TEST2(i, c - s, 21, "wrong final position %d != %d");
    }
    else
    {
        printf("sizeof(long long) == %d, not implemented\n", (int)sizeof(long long));
    }

    TEST(l, strtol("z", 0, 36), 35L, "%ld != %ld");
    TEST(l, strtol("00010010001101000101011001111000", 0, 2), 0x12345678L, "%ld != %ld");
    TEST(l, strtol(s = "0F5F", &c, 16), 0x0f5fL, "%ld != %ld");

    TEST(l, strtol(s = "0xz", &c, 16), 0L, "%ld != %ld");
    TEST2(i, c - s, 1, "wrong final position %ld != %ld");

    TEST(l, strtol(s = "0x1234", &c, 16), 0x1234, "%ld != %ld");
    TEST2(i, c - s, 6, "wrong final position %ld != %ld");

    c = NULL;
    TEST3(l, strtol(s = "123", &c, 36), 0, "%ld != %ld");
    TEST3(i, c - s, 0, "wrong final position %d != %d");

    TEST(l, strtol(s = "  15437", &c, 8), 015437, "%ld != %ld");
    TEST2(i, c - s, 7, "wrong final position %d != %d");

    TEST(l, strtol(s = "  1", &c, 0), 1, "%ld != %ld");
    TEST2(i, c - s, 3, "wrong final position %d != %d");
    return 0;
}
static void test_strtol(void)
{
    strtol_entry();
}
static void testcase(void)
{
    UTEST_UNIT_RUN(test_strtol);
}
UTEST_TC_EXPORT(testcase, "posix.stdlib_h.strtol_tc.c", RT_NULL, RT_NULL, 10);

