[libfann] 110/242: make sure the compiler treats numbers as floats

[Christian Kastner]

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chrisk-guest pushed a commit to tag Version2_0_0
in repository libfann.

commit 6936d6bcfc9a6013bc5f69a3fa550e138361705c
Author: Evan Nemerson <evan at coeus-group.com>
Date:   Thu Mar 25 05:28:15 2004 +0000

    make sure the compiler treats numbers as floats
---
 src/include/fann_activation.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/include/fann_activation.h b/src/include/fann_activation.h
index 10b11aa..33b1fe9 100644
--- a/src/include/fann_activation.h
+++ b/src/include/fann_activation.h
@@ -114,11 +114,11 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 #define fann_linear_derive(steepness, value) (steepness)
 
 /* FANN_SIGMOID */
-#define fann_sigmoid(steepness, value) (1.0/(1.0 + exp(-2.0 * steepness * value)))
-#define fann_sigmoid_derive(steepness, value) (2.0 * steepness * value * (1.0 - value)) /* the plus is a trick to the derived function, to avoid getting stuck on flat spots */
+#define fann_sigmoid(steepness, value) (1.0f/(1.0f + exp(-2.0f * steepness * value)))
+#define fann_sigmoid_derive(steepness, value) (2.0f * steepness * value * (1.0f - value)) /* the plus is a trick to the derived function, to avoid getting stuck on flat spots */
 
 /* FANN_SIGMOID_SYMMETRIC */
-#define fann_sigmoid_symmetric(steepness, value) (2.0/(1.0 + exp(-2.0 * steepness * value)) - 1.0)
+#define fann_sigmoid_symmetric(steepness, value) (2.0f/(1.0f + exp(-2.0f * steepness * value)) - 1.0f)
 #define fann_sigmoid_symmetric_derive(steepness, value) steepness * (1.0f - (value*value))
 
 /* FANN_GAUSSIAN */

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