Question: why is the coordinate system compiler time specific? #398
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What is the logic behind making the coordinate system compiler time specific? Whats the limitation to having the coordinate system be chosen at run time? |
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Replies: 2 comments
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looking at the source code So far I am seeing that it's |
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This was done for optimization. The code only knows about the chosen coordinates through comparisons to If it turns out that with present-day compilers we can get the same performance by specifying coordinates at runtime, then we could consider changing this. |
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This was done for optimization. The code only knows about the chosen coordinates through comparisons to
COORDINATE_SYSTEM, especially inmeshblock.cpp, and these could be set at runtime. But if the comparisons are not compile-time evaluatable, there is little chance the compiler will inline calls to functions in the Coordinates class.If it turns out that with present-day compilers we can get the same performance by specifying coordinates at runtime, then we could consider changing this.