From 9e8c9802a2f6ac9cb686099f3c8bb55a58d7d96d Mon Sep 17 00:00:00 2001
From: Li <mourisl@hotmail.com>
Date: Thu, 25 Jan 2024 21:25:27 -0500
Subject: [PATCH] Add some debug information when reading the temporary file

---
 chromap.1          | 2 +-
 src/chromap.h      | 2 +-
 src/temp_mapping.h | 3 +++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/chromap.1 b/chromap.1
index 0b1a205..3755edf 100644
--- a/chromap.1
+++ b/chromap.1
@@ -1,4 +1,4 @@
-.TH chromap 1 "25 Jan 2024" "chromap-0.2.6 (r489)" "Bioinformatics tools"
+.TH chromap 1 "25 Jan 2024" "chromap-0.2.6 (r490)" "Bioinformatics tools"
 .SH NAME
 .PP
 chromap - fast alignment and preprocessing of chromatin profiles
diff --git a/src/chromap.h b/src/chromap.h
index 7cc6085..bebddd6 100644
--- a/src/chromap.h
+++ b/src/chromap.h
@@ -29,7 +29,7 @@
 #include "temp_mapping.h"
 #include "utils.h"
 
-#define CHROMAP_VERSION "0.2.6-r489"
+#define CHROMAP_VERSION "0.2.6-r490"
 
 namespace chromap {
 
diff --git a/src/temp_mapping.h b/src/temp_mapping.h
index bd75a62..a059146 100644
--- a/src/temp_mapping.h
+++ b/src/temp_mapping.h
@@ -39,6 +39,9 @@ struct TempMappingFileHandle {
 
   inline void InitializeTempMappingLoading(uint32_t temp_mapping_block_size) {
     file = fopen(file_path.c_str(), "rb");
+    if (file == NULL) {
+      std::cerr << "Temporary file " << file_path << " is missing.\n" ;
+    }
     assert(file != NULL);
     num_mappings = 0;
     block_size = temp_mapping_block_size;