Viewing file:  strcpy.c (1.33 KB) -rw-r--r--
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/* Copyright (C) 2000 Free Software Foundation.
Ensure builtin memcpy and strcpy perform correctly.
Written by Jakub Jelinek, 11/24/2000. */
extern void abort (void);
extern char *strcpy (char *, const char *);
typedef __SIZE_TYPE__ size_t;
extern void *memcpy (void *, const void *, size_t);
extern int memcmp (const void *, const void *, size_t);
char p[32] = "";
void
main_test (void)
{
if (strcpy (p, "abcde") != p || memcmp (p, "abcde", 6))
abort ();
if (strcpy (p + 16, "vwxyz" + 1) != p + 16 || memcmp (p + 16, "wxyz", 5))
abort ();
if (strcpy (p + 1, "") != p + 1 || memcmp (p, "a\0cde", 6))
abort ();
if (strcpy (p + 3, "fghij") != p + 3 || memcmp (p, "a\0cfghij", 9))
abort ();
if (memcpy (p, "ABCDE", 6) != p || memcmp (p, "ABCDE", 6))
abort ();
if (memcpy (p + 16, "VWX" + 1, 2) != p + 16 || memcmp (p + 16, "WXyz", 5))
abort ();
if (memcpy (p + 1, "", 1) != p + 1 || memcmp (p, "A\0CDE", 6))
abort ();
if (memcpy (p + 3, "FGHI", 4) != p + 3 || memcmp (p, "A\0CFGHIj", 9))
abort ();
/* Test at least one instance of the __builtin_ style. We do this
to ensure that it works and that the prototype is correct. */
if (__builtin_strcpy (p, "abcde") != p || memcmp (p, "abcde", 6))
abort ();
if (__builtin_memcpy (p, "ABCDE", 6) != p || memcmp (p, "ABCDE", 6))
abort ();
}
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