Merge pull request #112 from hartwork/issue-111-require-finite-values

Require finite values from stdin (fixes #111)
tenox7 · Nov 30, 2023 · ef2c97a · ef2c97a
2 parents 1ac58c4 + bb5915e
commit ef2c97a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/ttyplot.c b/ttyplot.c
@@ -14,6 +14,7 @@
 
 #include <assert.h>
 #include <ctype.h>  // isspace
+#include <math.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <string.h>
@@ -385,6 +386,8 @@ size_t handle_input_data(char *buffer, size_t length)
         double value = strtod(token, &number_end);
         if (*number_end != '\0')  // garbage found
             value = 0;
+        if (! isfinite(value))
+            value = 0;
         if (handle_value(value))
             records++;
         str = NULL;  // tell strtok() to stay on the same string