stdint.h: Don't use hex values to specify minimum values of fixed width, signed values. Hex values are inherently unsigned and not usable for this purpose in all contexts

1 files changed, 106 insertions, 106 deletions

diff --git a/nuttx/include/stdint.h b/nuttx/include/stdint.h
index af0ce2634..41cca77b7 100644
--- a/nuttx/include/stdint.h
+++ b/nuttx/include/stdint.h
@@ -55,80 +55,80 @@
 
 /* Limits of exact-width integer types */
 
-#define INT8_MIN            0x80
-#define INT8_MAX            0x7f
-#define UINT8_MAX           0xff
+#define INT8_MIN            (-INT8_MAX - 1)
+#define INT8_MAX            127
+#define UINT8_MAX           255
 
-#define INT16_MIN           0x8000
-#define INT16_MAX           0x7fff
-#define UINT16_MAX          0xffff
+#define INT16_MIN           (-INT16_MAX - 1)
+#define INT16_MAX           32767
+#define UINT16_MAX          65535u
 
 #ifdef __INT24_DEFINED
-#  define INT24_MIN         0x800000
-#  define INT24_MAX         0x7fffff
-#  define UINT24_MAX        0xffffff
+#  define INT24_MIN         (-INT24_MAX - 1)
+#  define INT24_MAX         8388607
+#  define UINT24_MAX        16777215u
 #endif
 
-#define INT32_MIN           0x80000000
-#define INT32_MAX           0x7fffffff
-#define UINT32_MAX          0xffffffff
+#define INT32_MIN           (-INT32_MAX - 1)
+#define INT32_MAX           2147483647
+#define UINT32_MAX          4294967295u
 
 #ifdef __INT64_DEFINED
-#  define INT64_MIN         0x8000000000000000
-#  define INT64_MAX         0x7fffffffffffffff
-#  define UINT64_MAX        0xffffffffffffffff
+#  define INT64_MIN         (-INT64_MAX - 1ll)
+#  define INT64_MAX         9223372036854775807ll
+#  define UINT64_MAX        18446744073709551615ull
 #endif
 
 /* Limits of minimum-width integer types */
 
-#define INT_LEAST8_MIN      0x80
-#define INT_LEAST8_MAX      0x7f
-#define UINT_LEAST8_MAX     0xff
+#define INT_LEAST8_MIN      INT8_MIN
+#define INT_LEAST8_MAX      INT8_MAX
+#define UINT_LEAST8_MAX     UINT8_MAX
 
-#define INT_LEAST16_MIN     0x8000
-#define INT_LEAST16_MAX     0x7fff
-#define UINT_LEAST16_MAX    0xffff
+#define INT_LEAST16_MIN     INT16_MIN
+#define INT_LEAST16_MAX     INT16_MAX
+#define UINT_LEAST16_MAX    UINT16_MAX
 
 #ifdef __INT24_DEFINED
-#  define INT_LEAST24_MIN   0x800000
-#  define INT_LEAST24_MAX   0x7fffff
-#  define UINT_LEAST24_MAX  0xffffff
+#  define INT_LEAST24_MIN   INT24_MIN
+#  define INT_LEAST24_MAX   INT24_MAX
+#  define UINT_LEAST24_MAX  UINT24_MAX
 #endif
 
-#define INT_LEAST32_MIN     0x80000000
-#define INT_LEAST32_MAX     0x7fffffff
-#define UINT_LEAST32_MAX    0xffffffff
+#define INT_LEAST32_MIN     INT32_MIN
+#define INT_LEAST32_MAX     INT32_MAX
+#define UINT_LEAST32_MAX    UINT32_MAX
 
 #ifdef __INT64_DEFINED
-#  define INT_LEAST64_MIN   0x8000000000000000
-#  define INT_LEAST64_MAX   0x7fffffffffffffff
-#  define UINT_LEAST64_MAX  0xffffffffffffffff
+#  define INT_LEAST64_MIN   INT64_MIN
+#  define INT_LEAST64_MAX   INT64_MAX
+#  define UINT_LEAST64_MAX  UINT64_MAX
 #endif
 
 /* Limits of fastest minimum-width integer types */
 
-#define INT_FAST8_MIN       0x80
-#define INT_FAST8_MAX       0x7f
-#define UINT_FAST8_MAX      0xff
+#define INT_FAST8_MIN       INT8_MIN
+#define INT_FAST8_MAX       INT8_MAX
+#define UINT_FAST8_MAX      UINT8_MAX
 
-#define INT_FAST16_MIN      0x8000
-#define INT_FAST16_MAX      0x7fff
-#define UINT_FAST16_MAX     0xffff
+#define INT_FAST16_MIN      INT16_MIN
+#define INT_FAST16_MAX      INT16_MAX
+#define UINT_FAST16_MAX     UINT16_MAX
 
 #ifdef __INT24_DEFINED
-#  define INT_FAST24_MIN    0x800000
-#  define INT_FAST24_MAX    0x7fffff
-#  define UINT_FAST24_MAX   0xffffff
+#  define INT_FAST24_MIN    INT24_MIN
+#  define INT_FAST24_MAX    INT24_MAX
+#  define UINT_FAST24_MAX   UINT24_MAX
 #endif
 
-#define INT_FAST32_MIN      0x80000000
-#define INT_FAST32_MAX      0x7fffffff
-#define UINT_FAST32_MAX     0xffffffff
+#define INT_FAST32_MIN      INT32_MIN
+#define INT_FAST32_MAX      INT32_MAX
+#define UINT_FAST32_MAX     UINT32_MAX
 
 #ifdef __INT64_DEFINED
-#  define INT_FAST64_MIN    0x8000000000000000
-#  define INT_FAST64_MAX    0x7fffffffffffffff
-#  define UINT_FAST64_MAX   0xffffffffffffffff
+#  define INT_FAST64_MIN    INT64_MIN
+#  define INT_FAST64_MAX    INT64_MAX
+#  define UINT_FAST64_MAX   UINT64_MAX
 #endif
 
 /* Limits of integer types capable of holding object pointers */
@@ -156,32 +156,32 @@
 /* Macros for minimum-width integer constant expressions */
 
 #if 0 /* REVISIT: Depends on architecture specific implementation */
-#define INT8_C(x) x
-#define INT16_C(x) x
-#define INT32_C(x) x ## L
-#define INT64_C(x) x ## LL
-
-#define UINT8_C(x) x
-#define UINT16_C(x) x
-#define UINT32_C(x) x ## UL
-#define UINT64_C(x) x ## ULL
+#define INT8_C(x)           x
+#define INT16_C(x)          x
+#define INT32_C(x)          x ## l
+#define INT64_C(x)          x ## ll
+
+#define UINT8_C(x)          x
+#define UINT16_C(x)         x
+#define UINT32_C(x)         x ## ul
+#define UINT64_C(x)         x ## ull
 #endif
 
 /* Macros for greatest-width integer constant expressions */
 
 #ifdef CONFIG_HAVE_LONG_LONG
-#  define INTMAX_C(x) x ## LL
-#  define UINTMAX_C(x) x ## ULL
+#  define INTMAX_C(x)       x ## ll
+#  define UINTMAX_C(x)      x ## ull
 #else
-#  define INTMAX_C(x) x ## L
-#  define UINTMAX_C(x) x ## UL
+#  define INTMAX_C(x)       x ## l
+#  define UINTMAX_C(x)      x ## ul
 #endif
 
 /* Limits of Other Integer Types */
 
 #if 0
-#  define PTRDIFF_MIN
-#  define PTRDIFF_MAX
+#  define                   PTRDIFF_MIN
+#  define                   PTRDIFF_MAX
 #endif
 
 #ifdef CONFIG_SMALL_MEMORY
@@ -197,11 +197,11 @@
 #endif /* CONFIG_SMALL_MEMORY */
 
 #if 0
-#  define WCHAR_MIN
-#  define WCHAR_MAX
+#  define                   WCHAR_MIN
+#  define                   WCHAR_MAX
 
-#  define WINT_MIN
-#  define WINT_MAX
+#  define                   WINT_MIN
+#  define                   WINT_MAX
 #endif
 
 /****************************************************************************
@@ -216,95 +216,95 @@
  * provided by their toolchain header files.
  */
 
-typedef _int8_t      int8_t;
-typedef _uint8_t     uint8_t;
+typedef _int8_t             int8_t;
+typedef _uint8_t            uint8_t;
 
-typedef _int16_t     int16_t;
-typedef _uint16_t    uint16_t;
+typedef _int16_t            int16_t;
+typedef _uint16_t           uint16_t;
 
 #ifdef __INT24_DEFINED
-typedef _int24_t     int24_t;
-typedef _uint24_t    uint24_t;
+typedef _int24_t            int24_t;
+typedef _uint24_t           uint24_t;
 #endif
 
-typedef _int32_t     int32_t;
-typedef _uint32_t    uint32_t;
+typedef _int32_t            int32_t;
+typedef _uint32_t           uint32_t;
 
 #ifdef __INT64_DEFINED
-typedef _int64_t     int64_t;
-typedef _uint64_t    uint64_t;
+typedef _int64_t            int64_t;
+typedef _uint64_t           uint64_t;
 #endif
 
 /* Minimum-width integer types */
 
-typedef _int8_t      int_least8_t;
-typedef _uint8_t     uint_least8_t;
+typedef _int8_t             int_least8_t;
+typedef _uint8_t            uint_least8_t;
 
-typedef _int16_t     int_least16_t;
-typedef _uint16_t    uint_least16_t;
+typedef _int16_t            int_least16_t;
+typedef _uint16_t           uint_least16_t;
 
 #ifdef __INT24_DEFINED
-typedef _int24_t     int_least24_t;
-typedef _uint24_t    uint_least24_t;
+typedef _int24_t            int_least24_t;
+typedef _uint24_t           uint_least24_t;
 #else
-typedef _int32_t     int_least24_t;
-typedef _uint32_t    uint_least24_t;
+typedef _int32_t            int_least24_t;
+typedef _uint32_t           uint_least24_t;
 #endif
 
-typedef _int32_t     int_least32_t;
-typedef _uint32_t    uint_least32_t;
+typedef _int32_t            int_least32_t;
+typedef _uint32_t           uint_least32_t;
 
 #ifdef __INT64_DEFINED
-typedef _int64_t     int_least64_t;
-typedef _uint64_t    uint_least64_t;
+typedef _int64_t            int_least64_t;
+typedef _uint64_t           uint_least64_t;
 #endif
 
 /* Fastest minimum-width integer types */
 
-typedef _int8_t      int_fast8_t;
-typedef _uint8_t     uint_fast8_t;
+typedef _int8_t             int_fast8_t;
+typedef _uint8_t            uint_fast8_t;
 
-typedef int          int_fast16_t;
-typedef unsigned int uint_fast16_t;
+typedef int                 int_fast16_t;
+typedef unsigned int        uint_fast16_t;
 
 #ifdef __INT24_DEFINED
-typedef _int24_t     int_fast24_t;
-typedef _uint24_t    uint_fast24_t;
+typedef _int24_t            int_fast24_t;
+typedef _uint24_t           uint_fast24_t;
 #else
-typedef _int32_t     int_fast24_t;
-typedef _uint32_t    uint_fast24_t;
+typedef _int32_t            int_fast24_t;
+typedef _uint32_t           uint_fast24_t;
 #endif
 
-typedef _int32_t     int_fast32_t;
-typedef _uint32_t    uint_fast32_t;
+typedef _int32_t            int_fast32_t;
+typedef _uint32_t           uint_fast32_t;
 
 #ifdef __INT64_DEFINED
-typedef _int64_t     int_fast64_t;
-typedef _uint64_t    uint_fast64_t;
+typedef _int64_t            int_fast64_t;
+typedef _uint64_t           uint_fast64_t;
 #endif
 
 /* Integer types capable of holding object pointers */
 
-typedef _intptr_t    intptr_t;
-typedef _uintptr_t   uintptr_t;
+typedef _intptr_t           intptr_t;
+typedef _uintptr_t          uintptr_t;
 
 /* Some architectures support a FAR pointer which is larger then the normal
  * (near) pointer
  */
 
 #ifdef CONFIG_HAVE_FARPOINTER
-typedef _int_farptr_t    int_farptr_t;
-typedef _uint_farptr_t   uint_farptr_t;
+typedef _int_farptr_t       int_farptr_t;
+typedef _uint_farptr_t      uint_farptr_t;
 #endif
 
 /* Greatest-width integer types */
 
 #ifdef __INT64_DEFINED
-typedef _int64_t     intmax_t;
-typedef _uint64_t    uintmax_t;
+typedef _int64_t            intmax_t;
+typedef _uint64_t           uintmax_t;
 #else
-typedef _int32_t     intmax_t;
-typedef _uint32_t    uintmax_t;
+typedef _int32_t            intmax_t;
+typedef _uint32_t           uintmax_t;
 #endif
 
 #endif /* CONFIG_ARCH_STDBOOL_H */