/* Test string/memory functions with size_t in the lower 32 bits of
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/* On x32, parameter_t may be passed in a 64-bit register with the LEN
field in the lower 32 bits. When the LEN field of 64-bit register
is passed to string/memory function as the size_t parameter, only
the lower 32 bits can be used. */
void (*fn) (void);