[libc] [llvm] [libc] Include algorithm.h to parser.h (PR #87125)

[Caslyn Tonelli via llvm-commits]

https://github.com/Caslyn updated https://github.com/llvm/llvm-project/pull/87125

>From 4efd8ff4860668d452a09616527987d2a86b9a52 Mon Sep 17 00:00:00 2001
From: Caslyn Tonelli <caslyn at google.com>
Date: Fri, 29 Mar 2024 15:43:10 -0700
Subject: [PATCH 1/2] [libc] Include algorithm.h to parser.h

This includes algorithm.h directly to provide the definition for
`cpp:max` in parser.h. This will define `max(...)` in the libc
namespace for build systems that pull in parser.h explicitly.
---
 libc/src/stdio/printf_core/parser.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libc/src/stdio/printf_core/parser.h b/libc/src/stdio/printf_core/parser.h
index 8e8c77e219fa4d..eda978a83ea8af 100644
--- a/libc/src/stdio/printf_core/parser.h
+++ b/libc/src/stdio/printf_core/parser.h
@@ -10,6 +10,7 @@
 #define LLVM_LIBC_SRC_STDIO_PRINTF_CORE_PARSER_H
 
 #include "include/llvm-libc-macros/stdfix-macros.h"
+#include "src/__support/CPP/algorithm.h" // max
 #include "src/__support/CPP/optional.h"
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/str_to_integer.h"

>From 9f55341f81fa45a4e3e1ce03c2288c22ddf3e086 Mon Sep 17 00:00:00 2001
From: Caslyn Tonelli <caslyn at google.com>
Date: Sun, 31 Mar 2024 13:03:30 -0700
Subject: [PATCH 2/2] Add algorithm.h to deps

---
 libc/src/stdio/printf_core/CMakeLists.txt         | 1 +
 utils/bazel/llvm-project-overlay/libc/BUILD.bazel | 1 +
 2 files changed, 2 insertions(+)

diff --git a/libc/src/stdio/printf_core/CMakeLists.txt b/libc/src/stdio/printf_core/CMakeLists.txt
index 02819ea25ea055..7db79c54beb0ae 100644
--- a/libc/src/stdio/printf_core/CMakeLists.txt
+++ b/libc/src/stdio/printf_core/CMakeLists.txt
@@ -42,6 +42,7 @@ add_header_library(
     libc.src.__support.arg_list
     libc.src.__support.ctype_utils
     libc.src.__support.str_to_integer
+    libc.src.__support.CPP.algorithm
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.optional
     libc.src.__support.CPP.string_view
diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index 9169f330baac3c..9dfe4c48184e3e 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -3041,6 +3041,7 @@ libc_support_library(
     deps = [
         ":__support_arg_list",
         ":__support_common",
+        ":__support_cpp_algorithm",
         ":__support_cpp_bit",
         ":__support_cpp_optional",
         ":__support_cpp_string_view",