libcl | Line editor and Cisco-style command tree | Command Line Interface library
kandi X-RAY | libcl Summary
kandi X-RAY | libcl Summary
Line editor and Cisco-style command tree
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QUESTION
I am trying to create a simple tree using C++ to run in ROOT using this tutorial here: https://www.niser.ac.in/sercehep2017/notes/RootTutorial_TTree.pdf.
However, Why do I get this error:
...ANSWER
Answered 2020-Feb-10 at 01:57as you compiler says :
requires 0 arguments, but 1 was provided void tree_example1 ()
you have called tree_example1 with one argument instead of zero. redifine the function to accept the path
QUESTION
Consider the exact float values around 0.3
...ANSWER
Answered 2020-Jan-14 at 19:03One theory is that they call strtof function to get the float.
Indeed; they use a function comparable to strtof
. There are open source compilers. You can look at how they parse literals. Here is an implementation from GCC. It is too big to copy here. It uses GNU MPFR (multiple-precision floating-point) library.
The IEEE-754 document specifies how this conversion must behave on IEEE-754 conforming systems in the section titled 5.12 Details of conversion between floating-point data and external character sequences. Besides conversion functions, it also applies to translation time conversions such as those of floating point literals.
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