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-rw-r--r--methods/powell/powell_method.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/methods/powell/powell_method.hpp b/methods/powell/powell_method.hpp
index 837a0b0..7646e1d 100644
--- a/methods/powell/powell_method.hpp
+++ b/methods/powell/powell_method.hpp
@@ -33,7 +33,7 @@ namespace opt_utilities
private:
func_obj<rT,pT>* p_fo;
optimizer<rT,pT>* p_optimizer;
- mutable bool bstop;
+ volatile bool bstop;
//typedef blitz::Array<rT,2> array2d_type;
const char* do_get_type_name()const