Changes in pointer-subtraction.c

efbf0136 - Only issue warning for subtraction involving null pointers on live code paths

Fri, 03 Jun 2022 14:10:37 +0000

Only issue warning for subtraction involving null pointers on live code pathsSummary:Change the warning produced for subtraction from (or with) a null pointerto only be produced when the code path is live.https://github.com/llvm/llvm-project/issues/54570Author: Jamie Schmeiser Reviewed By: anarazel (Andres Freund)Differential Revision: https://reviews.llvm.org/D126816 List of files: /llvm-project-15.0.7/clang/test/Sema/pointer-subtraction.c

8c5edb59 - Use functions with prototypes when appropriate; NFC

Fri, 04 Feb 2022 20:19:56 +0000

Use functions with prototypes when appropriate; NFCA significant number of our tests in C accidentally use functionswithout prototypes. This patch converts the function signatures to havea prototype for the situations where the test is not specific to K&R Cdeclarations. e.g., void func();becomes void func(void);This is the second batch of tests being updated (there are a significantnumber of other tests left to be updated). List of files: /llvm-project-15.0.7/clang/test/Sema/pointer-subtraction.c

9cb00b9e - Reland Produce warning for performing pointer arithmetic on a null pointer.

Tue, 20 Jul 2021 14:12:20 +0000

Reland Produce warning for performing pointer arithmetic on a null pointer.Summary:Test and produce warning for subtracting a pointer from null or subtractingnull from a pointer.This reland adds the functionality that the warning is no longer reusing anexisting warning, it has different wording for C vs C++ to refect the factthat nullptr-nullptr has defined behaviour in C++, it is suppressedwhen the warning is triggered by a system header and adds-Wnull-pointer-subtraction to allow the warning to be controlled. -Wextraimplies -Wnull-pointer-subtraction.Author: Jamie Schmeiser Reviewed By: efriedma (Eli Friedman), nickdesaulniers (Nick Desaulniers)Differential Revision: https://reviews.llvm.org/D98798 List of files: /llvm-project-15.0.7/clang/test/Sema/pointer-subtraction.c