> From: Joseph S. Myers [mailto:jos...@codesourcery.com] > Sent: Tuesday, September 02, 2014 11:29 PM > > Identifiers beginning with a single underscore are reserved with file > scope. This means an application cannot provide an external definition of > them, because such an external definition would have file scope. So it's > fine for the implementation to define such identifiers and use them in the > implementation of standard functions.
Ah yes, I mistook file scope with file scope with internal linkage. So then there shouldn't be any problem since _printf_float and _scanf_float are only used for external linkage, no macro refer to them. Best regards, Thomas
