digitalmars.D.learn - Re: log2 buggy or is a real thing?
- bearophile <bearophileHUGS lycos.com> Apr 04 2012
- Timon Gehr <timon.gehr gmx.ch> Apr 04 2012
- Don Clugston <dac nospam.com> Apr 04 2012
Do you know why is this program: import std.stdio; void main() { real r = 9223372036854775808UL; writefln("%1.19f", r); } Printing: 9223372036854775807.8000000000000000000 Instead of this? 9223372036854775808.0000000000000000000 Bye, bearophile
Apr 04 2012
On 04/04/2012 01:46 PM, bearophile wrote:Do you know why is this program: import std.stdio; void main() { real r = 9223372036854775808UL; writefln("%1.19f", r); } Printing: 9223372036854775807.8000000000000000000 Instead of this? 9223372036854775808.0000000000000000000 Bye, bearophile
Works correctly here. (x64 linux)
Apr 04 2012
On 04/04/12 13:46, bearophile wrote:Do you know why is this program: import std.stdio; void main() { real r = 9223372036854775808UL; writefln("%1.19f", r); } Printing: 9223372036854775807.8000000000000000000 Instead of this? 9223372036854775808.0000000000000000000 Bye, bearophile
Poor float->decimal conversion in the C library ftoa() function.
Apr 04 2012