138 lines
2.4 KiB
C
138 lines
2.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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static int
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do_test (void)
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{
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size_t size;
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wchar_t *buf;
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FILE *fp = open_wmemstream (&buf, &size);
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if (fp == NULL)
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{
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puts ("open_wmemstream failed");
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return 1;
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}
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off64_t off = ftello64 (fp);
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if (off != 0)
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{
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puts ("initial position wrong");
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return 1;
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}
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if (fseek (fp, 32768, SEEK_SET) != 0)
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{
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puts ("fseek failed");
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return 1;
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}
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if (fputws (L"foo", fp) == EOF)
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{
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puts ("fputws failed");
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return 1;
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}
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if (fclose (fp) == EOF)
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{
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puts ("fclose failed");
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return 1;
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}
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if (size != 32768 + 3)
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{
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printf ("expected size %d, got %zu\n", 32768 + 3, size);
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return 1;
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}
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for (int i = 0; i < 32768; ++i)
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if (buf[i] != L'\0')
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{
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printf ("wide character at offset %d is %#x\n",
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i, (unsigned int) buf[i]);
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return 1;
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}
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if (wmemcmp (buf + 32768, L"foo", 3) != 0)
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{
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puts ("written string incorrect");
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return 1;
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}
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/* Mark the buffer. */
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wmemset (buf, L'A', size);
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free (buf);
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/* Try again, this time with write mode enabled before the seek. */
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fp = open_wmemstream (&buf, &size);
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if (fp == NULL)
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{
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puts ("2nd open_wmemstream failed");
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return 1;
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}
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off = ftello64 (fp);
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if (off != 0)
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{
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puts ("2nd initial position wrong");
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return 1;
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}
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if (fputws (L"bar", fp) == EOF)
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{
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puts ("2nd fputws failed");
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return 1;
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}
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if (fseek (fp, 32768, SEEK_SET) != 0)
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{
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puts ("2nd fseek failed");
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return 1;
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}
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if (fputws (L"foo", fp) == EOF)
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{
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puts ("3rd fputws failed");
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return 1;
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}
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if (fclose (fp) == EOF)
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{
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puts ("2nd fclose failed");
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return 1;
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}
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if (size != 32768 + 3)
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{
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printf ("2nd expected size %d, got %zu\n", 32768 + 3, size);
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return 1;
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}
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if (wmemcmp (buf, L"bar", 3) != 0)
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{
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puts ("initial string incorrect in 2nd try");
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return 1;
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}
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for (int i = 3; i < 32768; ++i)
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if (buf[i] != L'\0')
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{
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printf ("wide character at offset %d is %#x in 2nd try\n",
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i, (unsigned int) buf[i]);
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return 1;
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}
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if (wmemcmp (buf + 32768, L"foo", 3) != 0)
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{
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puts ("written string incorrect in 2nd try");
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return 1;
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}
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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