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diff eval.c @ 199:1d2bad7151f9

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Add a -debuglog option to send an execution trace to a file. Intended to be used when debugging imake templates and other complex input, not for debugging tradcpp itself.
author David A. Holland
date Sun, 04 Sep 2016 17:14:42 -0400 (2016-09-04)
parents 33954a07d013
children 3a25180d3a5c
line wrap: on
line diff
--- a/eval.c	Sat Dec 05 18:08:24 2015 -0500
+++ b/eval.c	Sun Sep 04 17:14:42 2016 -0400
@@ -642,6 +642,7 @@
 			complain_fail();
 		}
 	}
+	debuglog(p, "Undefined symbol %s; substituting 0", word);
 	return 0;
 }
 
@@ -744,6 +745,7 @@
 #ifdef DEBUG
 	fprintf(stderr, "eval: %s\n", expr);
 #endif
+	debuglog(p, "eval: %s", expr);
 
 	tokenarray_init(&tokens);
 	tokenize(p, expr);