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uint32_t is standard, uint32 is not. That is, if you include <inttypes. h> or <stdint. h> , you will get a definition of uint32_t .
UINT32_C is a macro for writing a constant of type uint_least32_t . Such a constant is suitable e.g. for initializing an uint32_t variable. I found for example the following definition in avr-libc (this is for the AVR target, just as an example): #define UINT32_C(value) __CONCAT(value, UL)
uint32_t is a numeric type that guarantees 32 bits. The value is unsigned, meaning that the range of values goes from 0 to 232 - 1. This. uint32_t* ptr; declares a pointer of type uint32_t* , but the pointer is uninitialized, that is, the pointer does not point to anywhere in particular.
uint32_t = unsigned integer 32-bit type.
As far as I know the suffix t in uint32_t denote type name but I wonder to know what is the C in UINT32_C and what is the differences?
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