https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83873
Bug ID: 83873
Summary: adjacent digit separators are accepted in the
exponent-part of floating-point literals
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: smw at gcc dot gnu.org
Target Milestone: ---
GCC diagnoses adjacent digit separators in integral literals and the
fractional-constant of floating point literals (as it should, according to the
productions in the grammar) but accepts an arbitrary number of adjacent digit
separators in the exponent-part of floating-point literals.
An example might speak volumes.
long double f = 1.0e1'''''''0;
Boom: clean compile.
