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Posted: Thu Jun 16, 2005 9:49 am
I do this in a function
When i debug it toto is always 2!!!
I don't understand why. I have no error at the compilation.
Thank you very much for help
Posted: Thu Jun 16, 2005 9:56 am
You must put "F" in the end.
Posted: Thu Jun 16, 2005 2:28 pm
I just added this global:
(gdb) p GLOB
$1 = 2.1400001
So as per C standard, you do not need 'F' at the end. The '.' indicates float. I guess it must have been something with P&E debugger. I guess my gdb uses more information from debug information to know the variable is a float.
Posted: Thu Jun 16, 2005 5:02 pm
For the ANSI-C standard, you do need the F, otherwise its a double, not a float.
For your case of just initializing a variable, the difference is optimized away as the compiler will do the conversion at compile time. However if you start to use 2.14 as part of a computation and you configured the compiler to support IEEE64 doubles, then you will get a more code when using 2.14 than with 2.14F.
Posted: Thu Jun 16, 2005 9:59 am
Posted: Thu Jun 16, 2005 10:15 am
Perhaps this is the debugger?
I use P&E product. Is there is something to do for float operations?
Posted: Thu Jun 16, 2005 11:58 am
Ok I find the solution.