From 4b0ded04758638aeaea18d2884683ae0c0288cb4 Mon Sep 17 00:00:00 2001
From: Nick Treleaven <n@trelsoft.com>
Date: Wed, 15 Jul 2020 18:59:39 +0100
Subject: [PATCH] checker: Warn instead of error for pointer arithmetic (#5840)

---
 vlib/v/checker/checker.v | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/vlib/v/checker/checker.v b/vlib/v/checker/checker.v
index d4cbbbf18b..b249cbf094 100644
--- a/vlib/v/checker/checker.v
+++ b/vlib/v/checker/checker.v
@@ -480,7 +480,7 @@ pub fn (mut c Checker) infix_expr(mut infix_expr ast.InfixExpr) table.Type {
 	right_pos := infix_expr.right.position()
 	if (left_type.is_ptr() || left.is_pointer()) &&
 		infix_expr.op in [.plus, .minus] && !c.inside_unsafe {
-		c.error('pointer arithmetic is only allowed in `unsafe` blocks', left_pos)
+		c.warn('pointer arithmetic is only allowed in `unsafe` blocks', left_pos)
 	}
 	mut return_type := left_type
 	// Single side check
@@ -1632,7 +1632,7 @@ pub fn (mut c Checker) assign_stmt(mut assign_stmt ast.AssignStmt) {
 		right_sym := c.table.get_type_symbol(right_type_unwrapped)
 		if (left_type.is_ptr() || left_sym.is_pointer()) &&
 			assign_stmt.op !in [.assign, .decl_assign] && !c.inside_unsafe {
-			c.error('pointer arithmetic is only allowed in `unsafe` blocks', assign_stmt.pos)
+			c.warn('pointer arithmetic is only allowed in `unsafe` blocks', assign_stmt.pos)
 		}
 		// Single side check
 		match assign_stmt.op {
@@ -2876,7 +2876,7 @@ pub fn (mut c Checker) postfix_expr(mut node ast.PostfixExpr) table.Type {
 		node.auto_locked, _ = c.fail_if_immutable(node.expr)
 	}
 	if (typ.is_ptr() || typ_sym.is_pointer()) && !c.inside_unsafe {
-		c.error('pointer arithmetic is only allowed in `unsafe` blocks', node.pos)
+		c.warn('pointer arithmetic is only allowed in `unsafe` blocks', node.pos)
 	}
 	return typ
 }