Viewing file:  string-opt-18.c (1.2 KB) -rw-r--r--
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/* Copyright (C) 2003 Free Software Foundation.
Test equal pointer optimizations don't break anything.
Written by Roger Sayle, July 14, 2003. */
extern void abort ();
typedef __SIZE_TYPE__ size_t;
extern void *memcpy(void*, const void*, size_t);
extern void *mempcpy(void*, const void*, size_t);
extern void *memmove(void*, const void*, size_t);
extern char *strcpy(char*, const char*);
extern int memcmp(const void*, const void*, size_t);
extern int strcmp(const char*, const char*);
extern int strncmp(const char*, const char*, size_t);
void test1 (void *ptr)
{
if (memcpy(ptr,ptr,8) != ptr)
abort ();
}
void test2 (char *ptr)
{
if (mempcpy(ptr,ptr,8) != ptr+8)
abort ();
}
void test3 (void *ptr)
{
if (memmove(ptr,ptr,8) != ptr)
abort ();
}
void test4 (char *ptr)
{
if (strcpy(ptr,ptr) != ptr)
abort ();
}
void test5 (void *ptr)
{
if (memcmp(ptr,ptr,8) != 0)
abort ();
}
void test6 (const char *ptr)
{
if (strcmp(ptr,ptr) != 0)
abort ();
}
void test7 (const char *ptr)
{
if (strncmp(ptr,ptr,8) != 0)
abort ();
}
int main ()
{
char buf[10];
test1 (buf);
test2 (buf);
test3 (buf);
test4 (buf);
test5 (buf);
test6 (buf);
test7 (buf);
return 0;
}
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