From c890c7b05b7f493710a1e4859d59edc74c5f7f2f Mon Sep 17 00:00:00 2001
From: Patryk Obara <dreamer.tan@gmail.com>
Date: Fri, 10 Apr 2020 23:41:23 +0200
Subject: [PATCH] Implement iround helper function

---
 include/support.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/support.h b/include/support.h
index ce0944af..19a2e76d 100644
--- a/include/support.h
+++ b/include/support.h
@@ -82,6 +82,13 @@ inline constexpr T1 ceil_sdivide(const T1 x, const T2 y) noexcept {
 	// https://stackoverflow.com/a/33790603
 }
 
+inline int iround(double x) {
+	assert(std::isfinite(x));
+	assert(x >= (std::numeric_limits<int>::min)());
+	assert(x <= (std::numeric_limits<int>::max)());
+	return static_cast<int>(round(x));
+}
+
 // Include a message in assert, similar to static_assert:
 #define assertm(exp, msg) assert(((void)msg, exp))
 // Use (void) to silent unused warnings.