From 59c73f1c469b6017f3ee8c8f0802353e7bab0108 Mon Sep 17 00:00:00 2001
From: godeffroy <godeffroy.valet@acapela-group.com>
Date: Mon, 31 Aug 2020 09:38:54 +0200
Subject: [PATCH] PR #3279 - assert instead of reporting error to std::cerr

---
 native_client/ctcdecode/ctc_beam_search_decoder.cpp | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/native_client/ctcdecode/ctc_beam_search_decoder.cpp b/native_client/ctcdecode/ctc_beam_search_decoder.cpp
index e35e0257..f65888c4 100644
--- a/native_client/ctcdecode/ctc_beam_search_decoder.cpp
+++ b/native_client/ctcdecode/ctc_beam_search_decoder.cpp
@@ -96,11 +96,7 @@ DecoderState::next(const double *probs,
         if (full_beam && log_prob_c + prefix->score < min_cutoff) {
           break;
         }
-        if (!prefix->is_empty() && prefix->timesteps.empty()) {
-          // This should never happen. But we report it if it does.
-          std::cerr<<"error: non-empty prefix has empty timestep sequence"<<std::endl;
-          continue;
-        }
+        assert(prefix->is_empty() || !prefix->timesteps.empty());
 
         // blank
         if (c == blank_id_) {