ce94d12f67
* gcc.c-torture/execute/stdio-opt-1.c: Test __builtin_ style too. * gcc.c-torture/execute/stdio-opt-2.c: Likewise. * gcc.c-torture/execute/string-opt-1.c: Likewise. * gcc.c-torture/execute/string-opt-2.c: Likewise. * gcc.c-torture/execute/string-opt-3.c: Likewise. * gcc.c-torture/execute/string-opt-4.c: Likewise. * gcc.c-torture/execute/string-opt-6.c: Likewise. * gcc.c-torture/execute/string-opt-7.c: Likewise. * gcc.c-torture/execute/string-opt-8.c: Likewise. * gcc.c-torture/execute/string-opt-9.c: Likewise. * gcc.c-torture/execute/string-opt-10.c: Likewise. * gcc.c-torture/execute/string-opt-11.c: Likewise. * gcc.c-torture/execute/string-opt-12.c: Likewise. * gcc.c-torture/execute/string-opt-3.c: Test rindex. * gcc.c-torture/execute/string-opt-4.c: Test index. From-SVN: r38497
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* Copyright (C) 2000 Free Software Foundation.
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Ensure all expected transformations of builtin strcat occur and
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perform correctly.
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Written by Kaveh R. Ghazi, 11/27/2000. */
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extern void abort (void);
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typedef __SIZE_TYPE__ size_t;
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extern char *strcat (char *, const char *);
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extern char *strcpy (char *, const char *);
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extern char *strcmp (const char *, const char *);
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int main ()
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{
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const char *const s1 = "hello world";
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const char *const s2 = "";
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char dst[64], *d2;
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strcpy (dst, s1);
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if (strcat (dst, "") != dst || strcmp (dst, s1))
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abort();
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strcpy (dst, s1);
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if (strcat (dst, s2) != dst || strcmp (dst, s1))
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abort();
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strcpy (dst, s1); d2 = dst;
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if (strcat (++d2, s2) != dst+1 || d2 != dst+1 || strcmp (dst, s1))
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abort();
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strcpy (dst, s1); d2 = dst;
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if (strcat (++d2+5, s2) != dst+6 || d2 != dst+1 || strcmp (dst, s1))
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abort();
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strcpy (dst, s1); d2 = dst;
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if (strcat (++d2+5, s1+11) != dst+6 || d2 != dst+1 || strcmp (dst, s1))
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abort();
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/* Test at least one instance of the __builtin_ style. We do this
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to ensure that it works and that the prototype is correct. */
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strcpy (dst, s1);
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if (__builtin_strcat (dst, "") != dst || strcmp (dst, s1))
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abort();
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return 0;
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}
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#ifdef __OPTIMIZE__
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/* When optimizing, all the above cases should be transformed into
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something else. So any remaining calls to the original function
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should abort. */
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static char *
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strcat (char *s1, const char *s2)
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{
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abort();
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}
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#endif
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