tree d936d8981348cd7ab0ff333bb11b30439b1ffd8d
parent 0a70bed4be269b848b0b357279b0a8c0d54bfc88
author patacca <patacca@autistici.org> 1623409987 +0200
committer Copybara-Service <copybara-worker@google.com> 1623892967 -0700

[Polly][Isl] Removing explicit operator bool() from isl C++ bindings. NFC.

This is part of an effort to reduce the differences between the custom C++ bindings used right now by polly in `lib/External/isl/include/isl/isl-noxceptions.h` and the official isl C++ interface.

Changes made:
 - Removing explicit operator bool() from all the classes in the isl C++ bindings.
 - Replace each call to operator bool() to method `is_null()`.
 - isl-noexceptions.h has been generated by this https://github.com/patacca/isl/commit/27396daac5a5ee8228d25511a12f4a814c92ba8f

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D103976

GitOrigin-RevId: 7c7978a122fdd6eb1bc6300b3a2582108f13ff89