January 31, 2010 [Issue 3758] New: Create D impementation of to!(float, string), etc. | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=3758 Summary: Create D impementation of to!(float, string), etc. Product: D Version: 2.040 Platform: Other OS/Version: Windows Status: NEW Keywords: performance Severity: enhancement Priority: P2 Component: Phobos AssignedTo: nobody@puremagic.com ReportedBy: dsimcha@yahoo.com --- Comment #0 from David Simcha <dsimcha@yahoo.com> 2010-01-31 08:14:15 PST --- std.conv calls the c functions atof, atod, atold, etc. for to!(float, string), to!(double, string), and to!(real, string) respectively. There are two practical reasons why we need D implementations of these functions: 1. Strings should be convertible to floats at compile time. 2. To make the input string compatible with C, it is copied using toStringz. This is inefficient, especially when trying to real large files with ASCII numbers in and convert the ASCII numbers to floats. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
August 16, 2010 [Issue 3758] Create D impementation of to!(float, string), etc. | ||||
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Posted in reply to David Simcha | http://d.puremagic.com/issues/show_bug.cgi?id=3758 David Simcha <dsimcha@yahoo.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #1 from David Simcha <dsimcha@yahoo.com> 2010-08-15 21:27:38 PDT --- A D implementation that doesn't allocate on every conversion now exists, even though it still doesn't work at compile time. Since converting strings to floats at compile time isn't very useful in practice anyhow, and I cared more about the memory allocations when I initially filed this, I'll mark it as resolved. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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