From 9468d6381997dedaf3330f0c6e1b4290a9af1345 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 16 Dec 2019 10:17:43 -0500
Subject: allow comparison of any numeric types

---
 src/analyze.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'src/analyze.cpp')

diff --git a/src/analyze.cpp b/src/analyze.cpp
index cfb1b82ef9..3318d4b9bb 100644
--- a/src/analyze.cpp
+++ b/src/analyze.cpp
@@ -9219,3 +9219,41 @@ void copy_const_val(ZigValue *dest, ZigValue *src) {
         dest->data.x_optional->parent.data.p_optional_payload.optional_val = dest;
     }
 }
+
+bool type_is_numeric(ZigType *ty) {
+    switch (ty->id) {
+        case ZigTypeIdInvalid:
+            zig_unreachable();
+        case ZigTypeIdComptimeFloat:
+        case ZigTypeIdComptimeInt:
+        case ZigTypeIdInt:
+        case ZigTypeIdFloat:
+            return true;
+
+        case ZigTypeIdVector:
+            return type_is_numeric(ty->data.vector.elem_type);
+
+        case ZigTypeIdMetaType:
+        case ZigTypeIdVoid:
+        case ZigTypeIdBool:
+        case ZigTypeIdUnreachable:
+        case ZigTypeIdPointer:
+        case ZigTypeIdArray:
+        case ZigTypeIdStruct:
+        case ZigTypeIdUndefined:
+        case ZigTypeIdNull:
+        case ZigTypeIdOptional:
+        case ZigTypeIdErrorUnion:
+        case ZigTypeIdErrorSet:
+        case ZigTypeIdEnum:
+        case ZigTypeIdUnion:
+        case ZigTypeIdFn:
+        case ZigTypeIdBoundFn:
+        case ZigTypeIdOpaque:
+        case ZigTypeIdFnFrame:
+        case ZigTypeIdAnyFrame:
+        case ZigTypeIdEnumLiteral:
+            return false;
+    }
+    zig_unreachable();
+}
-- 
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