This reverts PR #914 which introduced a hacky way to replace
all std namespace maths function calls with sycl namespace ones.
Presumably the original intention was to use GLM functions in SYCL
device code (e.g. on GPUs) and force it to use the maths implementations
optimised for the target device. However, this has been very limited
in scope since the start because GLM relies heavily on function pointers
which are illegal to use inside SYCL device code.
The hacky solution shadowing std namespace with glm::std is problematic
in many ways. One was that it required re-introducing all std symbols used
across GLM codebase back to glm::std. The list of these symbols is difficult
to maintain over time without extensive CI testing and unsurprisingly it got
broken. Any code just including (some of) GLM headers now no longer compiles
with SYCL compilers even if GLM is only used on the host side (CPU code).
Remove this hack to allow SYCL programs using GLM on the host side to compile.
The original hack was tested against the ComputeCpp compiler which is now
phased out in favour of Intel's DPC++. Remove also the mention of ComputeCpp
from README. The statement about "any C++11 compiler" still covers the host
code compilation with DPC++.
It is used as default configuration for Visual Studio 64 bits compilation (needs Language Extension).
code changes:
- add new qualifiers:
unaligned_simd_highp
unaligned_simd_mediump
unaligned_simd_lowp
- add use_simd and replace is_aligned
(code for ARM NEON is added but not tested)
Fix warnings on hash functions with GCC and -Wnoexcept:
* Add GLM_HAS_NOEXCEPT flag & GLM_NOEXCEPT #define to setup.hpp.
* Add GLM_NOEXCEPT to hash functions in hash.hpp.
* Add GLM_NOEXCEPT to matrix operator[] accessors.
* Add gtx_hash.cpp and a test to verify all hash overloads compile.
Configure with -DCMAKE_CXX_FLAGS="-Werror -Wnoexcept" to test.
__aarch64__ is the correct way, __arm64__ is for iOS.
But the memory model does not need any of these architecture defines to be fully
relevant. __LP64__ means Long Pointer 64 (ie 64bits), and __ILP32__ is Integer Long Pointer 32 (ie 32bits).
That's enough and avoids errors like __arch64__ (correct way is __aarch64__) but forgets __arm64__ (iOS).
Check against __cplusplus version instead of compiler version. This fixes compilation errors when using an older cpp standard version with a newer gcc compiler. This flag requires GCC 4.7 or greater.