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The <stdint.h> header introduces types with specific size restrictions that can be used to avoid dependence on a particular data model. For example, int_least32_t is the smallest signed integer type implementations support the implementation supports that contains at least 32 bits. The type uint_fast16_t is the fastest unsigned integer type supported by the implementation that contains at least 16 bits. The type intmax_t is the largest signed integer type supported by the implementation. The following types are required to be available on all implementations.
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