lstm: Fix compilation (undeclared 'isnan')

gcc report: lstm/lstmrecognizer.cpp:608:47: error: 'isnan' was not declared in this scope ASSERT_HOST(!isnan(output.f(t)[null_char_])); Signed-off-by: Stefan Weil <[email protected]>
tesseract-ocr · Nov 22, 2016 · beb564d · beb564d
1 parent b0abed7
commit beb564d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lstm/lstmrecognizer.cpp b/lstm/lstmrecognizer.cpp
@@ -600,7 +600,7 @@ void LSTMRecognizer::LabelsViaThreshold(const NetworkIO& output,
     ++t;
   }
   while (t < width) {
-    ASSERT_HOST(!isnan(output.f(t)[null_char_]));
+    ASSERT_HOST(!std::isnan(output.f(t)[null_char_]));
     int label = output.BestLabel(t, null_char_, null_char_, NULL);
     int char_start = t++;
     while (t < width && !NullIsBest(output, null_thr, null_char_, t) &&