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April 04, 2012 Re: log2 buggy or is a real thing? | ||||
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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 |
April 04, 2012 Re: log2 buggy or is a real thing? | ||||
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Posted in reply to bearophile | 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)
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April 04, 2012 Re: log2 buggy or is a real thing? | ||||
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Posted in reply to bearophile | 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.
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