From b443766792bf43f6e4563e2cb33ef660f8091a5e Mon Sep 17 00:00:00 2001
From: hanfezh <xianfeng.zhu@gmail.com>
Date: Fri, 16 May 2025 18:04:14 +0800
Subject: [PATCH 1/2] Correct std::chrono::abs

---
 CPP17.md  | 7 ++++---
 README.md | 7 ++++---
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/CPP17.md b/CPP17.md
index 56b966f..ff17060 100644
--- a/CPP17.md
+++ b/CPP17.md
@@ -690,9 +690,10 @@ else { /* handle failure */ }
 ### Rounding functions for chrono durations and timepoints
 Provides abs, round, ceil, and floor helper functions for `std::chrono::duration` and `std::chrono::time_point`.
 ```c++
-using seconds = std::chrono::seconds;
-std::chrono::milliseconds d{ 5500 };
-std::chrono::abs(d); // == 5s
+using std::chrono::seconds;
+using std::chrono::milliseconds;
+milliseconds a{ -5500 };
+milliseconds d = std::chromo::abs(a); // 5500ms
 std::chrono::round<seconds>(d); // == 6s
 std::chrono::ceil<seconds>(d); // == 6s
 std::chrono::floor<seconds>(d); // == 5s
diff --git a/README.md b/README.md
index f4dfbae..426757f 100644
--- a/README.md
+++ b/README.md
@@ -1495,9 +1495,10 @@ else { /* handle failure */ }
 ### Rounding functions for chrono durations and timepoints
 Provides abs, round, ceil, and floor helper functions for `std::chrono::duration` and `std::chrono::time_point`.
 ```c++
-using seconds = std::chrono::seconds;
-std::chrono::milliseconds d{ 5500 };
-std::chrono::abs(d); // == 5s
+using std::chrono::seconds;
+using std::chrono::milliseconds;
+milliseconds a{ -5500 };
+milliseconds d = std::chromo::abs(a); // 5500ms
 std::chrono::round<seconds>(d); // == 6s
 std::chrono::ceil<seconds>(d); // == 6s
 std::chrono::floor<seconds>(d); // == 5s

From 6ef573eea2f5996f90a6a6f5000c609f56e134af Mon Sep 17 00:00:00 2001
From: hanfezh <xianfeng.zhu@gmail.com>
Date: Sun, 1 Jun 2025 22:42:46 +0800
Subject: [PATCH 2/2] Correct the spelling of chrono

---
 CPP17.md  | 2 +-
 README.md | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CPP17.md b/CPP17.md
index ff17060..d114934 100644
--- a/CPP17.md
+++ b/CPP17.md
@@ -693,7 +693,7 @@ Provides abs, round, ceil, and floor helper functions for `std::chrono::duration
 using std::chrono::seconds;
 using std::chrono::milliseconds;
 milliseconds a{ -5500 };
-milliseconds d = std::chromo::abs(a); // 5500ms
+milliseconds d = std::chrono::abs(a); // 5500ms
 std::chrono::round<seconds>(d); // == 6s
 std::chrono::ceil<seconds>(d); // == 6s
 std::chrono::floor<seconds>(d); // == 5s
diff --git a/README.md b/README.md
index 426757f..51d8055 100644
--- a/README.md
+++ b/README.md
@@ -1498,7 +1498,7 @@ Provides abs, round, ceil, and floor helper functions for `std::chrono::duration
 using std::chrono::seconds;
 using std::chrono::milliseconds;
 milliseconds a{ -5500 };
-milliseconds d = std::chromo::abs(a); // 5500ms
+milliseconds d = std::chrono::abs(a); // 5500ms
 std::chrono::round<seconds>(d); // == 6s
 std::chrono::ceil<seconds>(d); // == 6s
 std::chrono::floor<seconds>(d); // == 5s