Agena

2.14.6, March 17, 2019 - The alternative table and sequence constructors `// ... \\' and `(/ ... \)' now accept keywords without the need to put them into quotes. Examples: > s := // 1, 2, opera print sqrt ~ while \\; > t := (/ 1, 2, opera print while \); - Added functions `fastmath.sinfast`, `fastmath.cosfast`, `fastmath.tanfast` which approximate sine, cosine and tangent and depending on the CPU can be up to 40 percent faster than the - accurate - `sin`, `cos` and `tan` operators. - Added function `fastmath.invsqrt` which approximates the inverse square root and is around five percent faster than inversing the result of the `sqrt` operator. - `fastmath.lbfast` has become 1,800 times more accurate at around the same speed. - The new function `os.suffix` returns the last suffix in a filename. - The new function `skycrane.replaceinfile` replaces all occurences of one or more strings in a text file in-place. - The new function `bytes.mask32` returns an integer with a given number of bits set to 1. - The `sema` package now supports multiple instances of semaphores; to create them, use the new function `sema.new` and call them with the existing procedures as the very first argument. Also, the package now consumes much less memory unless you close a semaphore id that was not the last one opened just one step before. - `math.isprime` should be a little bit faster now. - Fixed `os.mkstemp` which often returned errors. The function does not return an additional file handle any longer. - The new C API function `luaL_isudata` checks for a userdata object and also validates its metatable if present. - Some minor code improvements.