stdint.h: derive limits from __LONG_MAX, use common fast16 types

the bits file is retained, but as a single generic version, to allow
for the unlikely future possibility of letting a new arch define
something differently.

1 files changed, 29 insertions, 0 deletions

diff --git a/arch/generic/bits/stdint.h b/arch/generic/bits/stdint.h
new file mode 100644
index 00000000..86489187
--- /dev/null
+++ b/arch/generic/bits/stdint.h
@@ -0,0 +1,29 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN  INT32_MIN
+#define INT_FAST32_MIN  INT32_MIN
+
+#define INT_FAST16_MAX  INT32_MAX
+#define INT_FAST32_MAX  INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#if __LONG_MAX == 0x7fffffffL
+#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
+#define SIZE_MAX        UINT32_MAX
+#else
+#define INTPTR_MIN      INT64_MIN
+#define INTPTR_MAX      INT64_MAX
+#define UINTPTR_MAX     UINT64_MAX
+#define PTRDIFF_MIN     INT64_MIN
+#define PTRDIFF_MAX     INT64_MAX
+#define SIZE_MAX        UINT64_MAX
+#endif