Merge "libc: <stdint.h>: Proper C++"
diff --git a/libc/include/stdint.h b/libc/include/stdint.h
index 237baa2..a889f15 100644
--- a/libc/include/stdint.h
+++ b/libc/include/stdint.h
@@ -211,14 +211,20 @@
typedef int intptr_t;
typedef unsigned int uintptr_t;
+#ifdef __STDINT_LIMITS
# define INTPTR_MIN INT32_MIN
# define INTPTR_MAX INT32_MAX
# define UINTPTR_MAX UINT32_MAX
+# define PTRDIFF_MIN INT32_MIN
+# define PTRDIFF_MAX INT32_MAX
+#endif
+
+#ifdef __STDINT_MACROS
# define INTPTR_C(c) INT32_C(c)
# define UINTPTR_C(c) UINT32_C(c)
# define PTRDIFF_C(c) INT32_C(c)
-# define PTRDIFF_MIN INT32_MIN
-# define PTRDIFF_MAX INT32_MAX
+#endif
+
/*
@@ -230,24 +236,32 @@
typedef uint64_t uintmax_t;
typedef int64_t intmax_t;
-#define INTMAX_MIN INT64_MIN
-#define INTMAX_MAX INT64_MAX
-#define UINTMAX_MAX UINT64_MAX
+#ifdef __STDINT_LIMITS
+# define INTMAX_MIN INT64_MIN
+# define INTMAX_MAX INT64_MAX
+# define UINTMAX_MAX UINT64_MAX
+#endif
-#define INTMAX_C(c) INT64_C(c)
-#define UINTMAX_C(c) UINT64_C(c)
+#ifndef __STDINT_MACROS
+# define INTMAX_C(c) INT64_C(c)
+# define UINTMAX_C(c) UINT64_C(c)
+#endif
#else /* !__STDC_INT64__ */
typedef uint32_t uintmax_t;
typedef int32_t intmax_t;
-#define INTMAX_MIN INT32_MIN
-#define INTMAX_MAX INT32_MAX
-#define UINTMAX_MAX UINT32_MAX
+#ifdef __STDINT_LIMITS
+# define INTMAX_MIN INT32_MIN
+# define INTMAX_MAX INT32_MAX
+# define UINTMAX_MAX UINT32_MAX
+#endif
-#define INTMAX_C(c) INT32_C(c)
-#define UINTMAX_C(c) UINT32_C(c)
+#ifdef __STDINT_MACROS
+# define INTMAX_C(c) INT32_C(c)
+# define UINTMAX_C(c) UINT32_C(c)
+#endif
#endif /* !__STDC_INT64__ */