From 9980f8106238671f0334932bf92ff57daaaa638e Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Fri, 10 Sep 2021 16:14:39 +0100
Subject: [PATCH] Add other constants to c and libc

---
 core/c/c.odin           | 8 ++++++++
 core/c/libc/signal.odin | 3 +++
 core/c/libc/string.odin | 2 +-
 core/mem/mem.odin       | 2 +-
 core/runtime/procs.odin | 2 +-
 5 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/core/c/c.odin b/core/c/c.odin
index 2aa91551a..d135fa93c 100644
--- a/core/c/c.odin
+++ b/core/c/c.odin
@@ -89,6 +89,14 @@ INT16_MIN      :: ~INT16_MAX
 INT32_MIN      :: ~INT32_MAX
 INT64_MIN      :: ~INT64_MAX
 
+SIZE_MAX       :: max(size_t)
+
+PTRDIFF_MIN    :: min(ptrdiff_t)
+PTRDIFF_MAX    :: max(ptrdiff_t)
+
+WCHAR_MIN      :: min(wchar_t)
+WCHAR_MAX      :: max(wchar_t)
+
 NULL           :: rawptr(uintptr(0))
 
 NDEBUG         :: !ODIN_DEBUG
diff --git a/core/c/libc/signal.odin b/core/c/libc/signal.odin
index afb81dea1..ad007287e 100644
--- a/core/c/libc/signal.odin
+++ b/core/c/libc/signal.odin
@@ -10,6 +10,9 @@ when ODIN_OS == "windows" {
 
 sig_atomic_t :: distinct atomic_int
 
+SIG_ATOMIC_MIN :: min(sig_atomic_t)
+SIG_ATOMIC_MAX :: max(sig_atomic_t)
+
 @(default_calling_convention="c")
 foreign libc {
 	signal :: proc(sig: int, func: proc "c" (int)) -> proc "c" (int) ---
diff --git a/core/c/libc/string.odin b/core/c/libc/string.odin
index 822fe43c5..343bdd22d 100644
--- a/core/c/libc/string.odin
+++ b/core/c/libc/string.odin
@@ -38,7 +38,7 @@ foreign libc {
 	strtok   :: proc(s1: [^]char, s2: cstring) -> [^]char ---
 
 	// 7.24.6 Miscellaneous functions
-	memset   : proc(s: rawptr, c: int, n: size_t) -> rawptr : runtime.memset
 	strerror :: proc(errnum: int) -> [^]char ---
 	strlen   :: proc(s: cstring) -> size_t ---
 }
+memset : proc "c" (s: rawptr, c: int, n: size_t) -> rawptr : runtime.memset
diff --git a/core/mem/mem.odin b/core/mem/mem.odin
index 6b216e029..92b76ff83 100644
--- a/core/mem/mem.odin
+++ b/core/mem/mem.odin
@@ -4,7 +4,7 @@ import "core:runtime"
 import "core:intrinsics"
 
 set :: proc "contextless" (data: rawptr, value: byte, len: int) -> rawptr #no_bounds_check {
-	return runtime.memset(data, i32(value), len)
+	return runtime.memset(data, i32(value), int(len))
 }
 zero :: proc "contextless" (data: rawptr, len: int) -> rawptr {
 	return set(data, 0, len)
diff --git a/core/runtime/procs.odin b/core/runtime/procs.odin
index 0aaf49928..94624eea6 100644
--- a/core/runtime/procs.odin
+++ b/core/runtime/procs.odin
@@ -1,7 +1,7 @@
 package runtime
 
 @(link_name="memset")
-memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr #no_bounds_check {
+memset :: proc "c" (ptr: rawptr, val: i32, len: uint) -> rawptr #no_bounds_check {
 	if ptr != nil && len != 0 {
 		b := byte(val)
 		p := ([^]byte)(ptr)