From 113eb547643314d589579c2c97b162a6809397c2 Mon Sep 17 00:00:00 2001
From: Takuro Iizuka <t_iizuka@fixstars.com>
Date: Mon, 29 Jan 2024 16:05:51 -0800
Subject: [PATCH] Fixed minor issue

---
 include/ion/port.h | 6 +++---
 src/builder.cc     | 6 +-----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/include/ion/port.h b/include/ion/port.h
index 66a4c0f5..87fd62ab 100644
--- a/include/ion/port.h
+++ b/include/ion/port.h
@@ -60,8 +60,8 @@ class Port {
         Halide::Type type;
         int32_t dimensions;
 
-        std::unordered_map<int32_t, Halide::Internal::Parameter> params;
-        std::unordered_map<int32_t, const void *> instances;
+        std::unordered_map<uint32_t, Halide::Internal::Parameter> params;
+        std::unordered_map<uint32_t, const void *> instances;
 
         Impl();
         Impl(const std::string& pid, const std::string& pn, const Halide::Type& t, int32_t d);
@@ -213,7 +213,7 @@ class Port {
      std::vector<const void *> as_instance() const {
          std::vector<const void *> instances;
         for (const auto& [i, instance] : impl_->instances) {
-             if (instances.size() <= i) {
+             if (instances.size() <= static_cast<decltype(instances.size())>(i)) {
                  instances.resize(i+1, nullptr);
              }
              instances[i] = instance;
diff --git a/src/builder.cc b/src/builder.cc
index f5eb3dbc..29305f0f 100644
--- a/src/builder.cc
+++ b/src/builder.cc
@@ -1,10 +1,6 @@
 #include <algorithm>
 #include <fstream>
 
-#ifdef __linux__
-#include <unistd.h>
-#endif
-
 #include <Halide.h>
 
 #include "ion/builder.h"
@@ -303,7 +299,7 @@ Halide::Pipeline Builder::build(bool implicit_output) {
                         bb->bind_input(arginfo.name, fs);
                     } else {
                         // access to Port[index]
-                        if (index>=fs.size()){
+                        if (index>=static_cast<decltype(index)>(fs.size())){
                             throw std::runtime_error("Port index out of range: " + port.pred_name());
                         }
                         bb->bind_input(arginfo.name, {fs[index]});