digitalmars.D.learn - Write double to text file, then read it back later without losing
- Andrew Brown (6/6) May 19 2014 I would like to write a double to a text file as hexadecimal and
- bearophile (15/17) May 19 2014 Is this good enough for you?
- Andrew Brown (2/19) May 19 2014
I would like to write a double to a text file as hexadecimal and then read it back in without losing information. Could someone tell me whether this is possible? It would happen in the same program, would I have to worry about different architectures? Thanks very much Andrew
May 19 2014
Andrew Brown:I would like to write a double to a text file as hexadecimal and then read it back in without losing information.Is this good enough for you? void main() { import std.stdio, std.math; auto fout = File("ouput.txt", "w"); fout.writef("%a", PI); fout.close; auto fin = File("ouput.txt"); real r; fin.readf("%f", &r); fin.close; assert(PI == r); } Bye, bearophile
May 19 2014
I'm sure it will be, thank you very much. On Monday, 19 May 2014 at 15:57:53 UTC, bearophile wrote:Andrew Brown:I would like to write a double to a text file as hexadecimal and then read it back in without losing information.Is this good enough for you? void main() { import std.stdio, std.math; auto fout = File("ouput.txt", "w"); fout.writef("%a", PI); fout.close; auto fin = File("ouput.txt"); real r; fin.readf("%f", &r); fin.close; assert(PI == r); } Bye, bearophile
May 19 2014