From ed0b78252e318ca04ed79d1e7887a06358f787d9 Mon Sep 17 00:00:00 2001
From: Andrej Babic <andrej.babic@psi.ch>
Date: Thu, 4 Jun 2020 13:19:15 +0200
Subject: [PATCH] Add checks for pulse_id ranges and pulse_id_step

---
 sf-writer/src/JFH5Writer.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sf-writer/src/JFH5Writer.cpp b/sf-writer/src/JFH5Writer.cpp
index df46c77..e49161a 100644
--- a/sf-writer/src/JFH5Writer.cpp
+++ b/sf-writer/src/JFH5Writer.cpp
@@ -84,6 +84,14 @@ size_t JFH5Writer::get_n_pulses_in_range(
         const uint64_t stop_pulse_id,
         const int pulse_id_step)
 {
+    if (stop_pulse_id < start_pulse_id) {
+        throw runtime_error("stop_pulse_id smaller than start_pulse_id.");
+    }
+
+    if (100 % pulse_id_step != 0) {
+        throw runtime_error("100 is not divisible by the pulse_id step.");
+    }
+
     size_t n_pulses = 0;
     if (start_pulse_id % pulse_id_step == 0) {
         n_pulses++;