X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fevaluate.h;h=2c80a6cba24fd90881e85062400a052f63335a7a;hb=30465dd3b9f55ec42c4b19c3c2077eede7237a26;hp=6cbc6cb4a24c0aa8325e300a780e3bf34ee79393;hpb=a47639620c40397939ae4d79c08d5d8f460bad5c;p=libs%2Fgl.git

diff --git a/source/glsl/evaluate.h b/source/glsl/evaluate.h
index 6cbc6cb4..2c80a6cb 100644
--- a/source/glsl/evaluate.h
+++ b/source/glsl/evaluate.h
@@ -7,6 +7,8 @@ namespace Msp {
 namespace GL {
 namespace SL {
 
+/** Evaluates an expression.  Only expressions consisting entirely of compile-
+time constants can be evaluated. */
 class ExpressionEvaluator: public NodeVisitor
 {
 public: