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Disable SFINAE for versions of gcc older than 4.8

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This commit is contained in:
Benoit Steiner 2015-10-20 11:53:30 -07:00
parent 73b8e719ae
commit 0af63493fd
1 changed files with 10 additions and 1 deletions
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9
unsupported/Eigen/CXX11/src/Tensor/TensorMacros.h
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@ -26,9 +26,18 @@
* void foo(){} * void foo(){}
*/ */
// SFINAE requires variadic templates
#ifdef EIGEN_HAS_VARIADIC_TEMPLATES #ifdef EIGEN_HAS_VARIADIC_TEMPLATES
// SFINAE doesn't work for gcc <= 4.7
#ifdef EIGEN_COMP_GNUC
#if EIGEN_GNUC_AT_LEAST(4,8)
#define EIGEN_HAS_SFINAE #define EIGEN_HAS_SFINAE
#endif #endif
#else
#define EIGEN_HAS_SFINAE
#endif
#endif
#define EIGEN_SFINAE_ENABLE_IF( __condition__ ) \ #define EIGEN_SFINAE_ENABLE_IF( __condition__ ) \
typename internal::enable_if< ( __condition__ ) , int >::type = 0 typename internal::enable_if< ( __condition__ ) , int >::type = 0