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HP-UX Reference Volume 5 of 5 > i
inttypes(5) |
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NAMEinttypes — basic integer data types DESCRIPTIONThis header file defines integer data types of various sizes. By using the data types defined in this header file, developers can be assured that the data types will have the same properties and behavior on different systems. Since not all implementations are required to support all of the integer sizes defined in this manual page, the proper way to see if a particular size of an integer is supported on the current implementation is to test the symbol that defines its maximum value. For example, if #ifdef UINT64_MAX tests false, then that implementation does not support 64-bit unsigned signed integers. This header file defines the following integer data types for 8, 16, 32, and 64 bits. intmax_t largest signed integer data type supported by implementation int8_t 8-bit signed integer int16_t 16-bit signed integer int32_t 32-bit signed integer int64_t 64-bit signed integer uintmax_t largest unsigned integer data type supported by implementation uint8_t 8-bit unsigned integer uint16_t 16-bit unsigned integer uint32_t 32-bit unsigned integer uint64_t 64-bit unsigned integer The following two data types are signed and unsigned integer data types that are large enough to hold a pointer. A pointer can be moved to or from these data types without corruption. intptr_t signed integer type that is large enough to hold a pointer uintptr_t unsigned integer type that is large enough to hold a pointer This header file defines the following integer data types for determining the most efficient data types to use for integer values on a particular implementation. intfast_t most efficient signed integer data type supported by implementation int_fast8_t most efficient signed integer of at least 8 bits int_fast16_t most efficient signed integer of at least 16 bits int_fast32_t most efficient signed integer of at least 32 bits int_fast64_t most efficient signed integer of at least 64 bits uintfast_t most efficient unsigned integer data type supported by implementation uint_fast8_t most efficient unsigned integer of at least 8 bits uint_fast16_t most efficient unsigned integer of at least 16 bits uint_fast32_t most efficient unsigned integer of at least 32 bits uint_fast64_t most efficient unsigned integer of at least 64 bits This header file defines the following integer data types for compatibility with systems that do not fit the 16-bit or 32-bit word size model. These data types define the signed and unsigned integers of at least 8, 16, 32, and 64 bits. int_least8_t smallest signed integer of at least 8 bits int_least16_t smallest signed integer of at least 16 bits int_least32_t smallest signed integer of at least 32 bits int_least64_t smallest signed integer of at least 64 bits uint_least8_t smallest unsigned integer of at least 8 bits uint_least16_t smallest unsigned integer of at least 16 bits uint_least32_t smallest unsigned integer of at least 32 bits uint_least64_t smallest unsigned integer of at least 64 bits The following macros define the minimum and maximum values that can be stored in the above data types. INTMAX_MIN minimum value that can be stored in the largest integer data type INTMAX_MAX maximum value that can be stored in the largest signed integer data type UINTMAX_MAX maximum value that can be stored in the largest unsigned integer data type INTFAST_MIN minimum value that can be stored in the most efficient integer data type INTFAST_MAX maximum value that can be stored in the most efficient signed integer data type UINTFAST_MAX maximum value that can be stored in the most efficient unsigned integer data type INT8_MIN minimum value that can be stored in an int8_t data type INT16_MIN minimum value that can be stored in an int16_t data type INT32_MIN minimum value that can be stored in an int32_t data type INT64_MIN minimum value that can be stored in an int64_t data type INT8_MAX maximum value that can be stored in an int8_t data type INT16_MAX maximum value that can be stored in an int16_t data type INT32_MAX maximum value that can be stored in an int32_t data type INT64_MAX maximum value that can be stored in an int64_t data type UINT8_MAX maximum value that can be stored in an uint8_t data type UINT16_MAX maximum value that can be stored in an uint16_t data type UINT32_MAX maximum value that can be stored in an uint32_t data type UINT64_MAX maximum value that can be stored in an uint64_t data type INT_FAST8_MIN minimum value that can be stored in an int_fast8_t data type INT_FAST16_MIN minimum value that can be stored in an int_fast16_t data type INT_FAST32_MIN minimum value that can be stored in an int_fast32_t data type INT_FAST64_MIN minimum value that can be stored in an int_fast64_t data type INT_FAST8_MAX maximum value that can be stored in an int_fast8_t data type INT_FAST16_MAX maximum value that can be stored in an int_fast16_t data type INT_FAST32_MAX maximum value that can be stored in an int_fast32_t data type INT_FAST64_MAX maximum value that can be stored in an int_fast64_t data type INT_LEAST8_MIN minimum value that can be stored in an int_least8_t data type INT_LEAST16_MIN minimum value that can be stored in an int_least16_t data type INT_LEAST32_MIN minimum value that can be stored in an int_least_32_t data type INT_LEAST64_MIN minimum value that can be stored in an int_least_64_t data type INT_LEAST8_MAX maximum value that can be stored in an int_least8_t data type INT_LEAST16_MAX maximum value that can be stored in an int_least16_t data type INT_LEAST32_MAX maximum value that can be stored in an int_least_32_t data type INT_LEAST64_MAX maximum value that can be stored in an int_least_64_t data type The following macros can be used as formatting options with the printf() family of functions (see printf(3S)). These macros are used to select the correct formatting option for the integer data types defined earlier in this manual page. PRId8 d print formatting option for int8_t PRId16 d print formatting option for int16_t PRId32 d print formatting option for int32_t PRId64 d print formatting option for int64_t PRIdMAX d print formatting option for intmax_t PRIdFAST8 d print formatting option for int_fast8_t PRIdFAST16 d print formatting option for int_fast16_t PRIdFAST32 d print formatting option for int_fast32_t PRIdFAST64 d print formatting option for int_fast64_t PRIdFAST d print formatting option for intfast_t PRIdLEAST8 d print formatting option for int_least8_t PRIdLEAST16 d print formatting option for int_least16_t PRIdLEAST32 d print formatting option for int_least32_t PRIdLEAST64 d print formatting option for int_least64_t PRIi8 i print formatting option for int8_t PRIi16 i print formatting option for int16_t PRIi32 i print formatting option for int32_t PRIi64 i print formatting option for int64_t PRIiFAST8 i print formatting option for int_fast8_t PRIiFAST16 i print formatting option for int_fast16_t PRIiFAST32 i print formatting option for int_fast32_t PRIiFAST64 i print formatting option for int_fast64_t PRIiLEAST8 i print formatting option for int_least8_t PRIiLEAST16 i print formatting option for int_least16_t PRIiLEAST32 i print formatting option for int_least32_t PRIiLEAST64 i print formatting option for int_least64_t PRIu8 u print formatting option for uint8_t PRIu16 u print formatting option for uint16_t PRIu32 u print formatting option for uint32_t PRIu64 u print formatting option for uint64_t PRIuMAX u print formatting option for uintmax_t PRIuFAST8 u print formatting option for uint_fast8_t PRIuFAST16 u print formatting option for uint_fast16_t PRIuFAST32 u print formatting option for uint_fast32_t PRIuFAST64 u print formatting option for uint_fast64_t PRIuFAST u print formatting option for uintfast_t PRIuLEAST8 u print formatting option for uint_least8_t PRIuLEAST16 u print formatting option for uint_least16_t PRIuLEAST32 u print formatting option for uint_least32_t PRIuLEAST64 u print formatting option for uint_least64_t PRIo8 o print formatting option for int8_t PRIo16 o print formatting option for int16_t PRIo32 o print formatting option for int32_t PRIo64 o print formatting option for int64_t PRIoMAX o print formatting option for intmax_t PRIoFAST8 o print formatting option for int_fast8_t PRIoFAST16 o print formatting option for int_fast16_t PRIoFAST32 o print formatting option for int_fast32_t PRIoFAST64 o print formatting option for int_fast64_t PRIoFAST o print formatting option for intfast_t PRIoLEAST8 o print formatting option for int_least8_t PRIoLEAST16 o print formatting option for int_least16_t PRIoLEAST32 o print formatting option for int_least32_t PRIoLEAST64 o print formatting option for int_least64_t PRIx8 x print formatting option for int8_t PRIx16 x print formatting option for int16_t PRIx32 x print formatting option for int32_t PRIx64 x print formatting option for int64_t PRIxMAX x print formatting option for intmax_t PRIxFAST8 x print formatting option for int_fast8_t PRIxFAST16 x print formatting option for int_fast16_t PRIxFAST32 x print formatting option for int_fast32_t PRIxFAST64 x print formatting option for int_fast64_t PRIoFAST x print formatting option for intfast_t PRIxLEAST8 x print formatting option for int_least8_t PRIxLEAST16 x print formatting option for int_least16_t PRIxLEAST32 x print formatting option for int_least32_t PRIxLEAST64 x print formatting option for int_least64_t PRIX8 X print formatting option for int8_t PRIX16 X print formatting option for int16_t PRIX32 X print formatting option for int32_t PRIX64 X print formatting option for int64_t PRIXFAST8 X print formatting option for int_fast8_t PRIXFAST16 X print formatting option for int_fast16_t PRIXFAST32 X print formatting option for int_fast32_t PRIXFAST64 X print formatting option for int_fast64_t PRIXLEAST8 X print formatting option for int_least8_t PRIXLEAST16 X print formatting option for int_least16_t PRIXLEAST32 X print formatting option for int_least32_t PRIXLEAST64 X print formatting option for int_least64_t The following macros can be used as formatting options with the scanf() family of functions (see scanf(3S)). These macros are used to select the correct formatting option for the integer data types defined earlier in this manual page. SCNd16 d scan formatting option for int16_t SCNd32 d scan formatting option for int32_t SCNd64 d scan formatting option for int64_t SCNdMAX d scan formatting option for intmax_t SCNi16 i scan formatting option for int16_t SCNi32 i scan formatting option for int32_t SCNi64 i scan formatting option for int64_t SCNiMAX i scan formatting option for intmax_t SCNu16 u scan formatting option for uint16_t SCNu32 u scan formatting option for uint32_t SCNu64 u scan formatting option for uint64_t SCNo16 o scan formatting option for int16_t SCNo32 o scan formatting option for int32_t SCNo64 o scan formatting option for int64_t SCNoMAX o scan formatting option for intmax_t SCNx16 x scan formatting option for int16_t SCNx32 x scan formatting option for int32_t SCNx64 x scan formatting option for int64_t SCNxMAX x scan formatting option for intmax_t SCNdFAST d scan formatting option for intfast_t SCNiFAST i scan formatting option for intfast_t SCNoFAST o scan formatting option for intfast_t SCNxFAST x scan formatting option for intfast_t NOTESThe formatting options for the printf() family of functions all begin with PRI, whereas the formatting options for the scanf() family of functions all begin with SCN. These formatting strings may not be interchangeable. |
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