From 0fa43fa5774a213f001ef5c4a3ad8eec7ef2ec24 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Mon, 2 Dec 2024 08:47:19 +0100 Subject: [PATCH] t/helper: don't depend on implicit wraparound In our test helpers we have two cases where we assign -1 to an `unsigned long`. The intent is to essentially mean "unbounded output", which is achieved via implicit wraparound of the value. This pattern causes warnings with -Wsign-compare though. Adapt it and instead use `ULONG_MAX` explicitly. Signed-off-by: Patrick Steinhardt --- t/helper/test-csprng.c | 5 +---- t/helper/test-genrandom.c | 4 +--- 2 files changed, 2 insertions(+), 7 deletions(-) diff --git a/t/helper/test-csprng.c b/t/helper/test-csprng.c index ea9b9b656307d3..a4a0aca61773b0 100644 --- a/t/helper/test-csprng.c +++ b/t/helper/test-csprng.c @@ -1,9 +1,6 @@ -#define DISABLE_SIGN_COMPARE_WARNINGS - #include "test-tool.h" #include "git-compat-util.h" - int cmd__csprng(int argc, const char **argv) { unsigned long count; @@ -14,7 +11,7 @@ int cmd__csprng(int argc, const char **argv) return 2; } - count = (argc == 2) ? strtoul(argv[1], NULL, 0) : -1L; + count = (argc == 2) ? strtoul(argv[1], NULL, 0) : ULONG_MAX; while (count) { unsigned long chunk = count < sizeof(buf) ? count : sizeof(buf); diff --git a/t/helper/test-genrandom.c b/t/helper/test-genrandom.c index 5b51e6648d8e69..51b67f2f874694 100644 --- a/t/helper/test-genrandom.c +++ b/t/helper/test-genrandom.c @@ -4,8 +4,6 @@ * Copyright (C) 2007 by Nicolas Pitre, licensed under the GPL version 2. */ -#define DISABLE_SIGN_COMPARE_WARNINGS - #include "test-tool.h" #include "git-compat-util.h" @@ -24,7 +22,7 @@ int cmd__genrandom(int argc, const char **argv) next = next * 11 + *c; } while (*c++); - count = (argc == 3) ? strtoul(argv[2], NULL, 0) : -1L; + count = (argc == 3) ? strtoul(argv[2], NULL, 0) : ULONG_MAX; while (count--) { next = next * 1103515245 + 12345;