AVR Libc Library Reference
INT8_C(value)
UINT8_C(value)
INT16_C(value)
UINT16_C(value)
INT32_C(value)
UINT32_C(value)
INT64_C(value)
UINT64_C(value)
INTMAX_C(value)
UINTMAX_C(value)
16-bit signed type.
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