[PATCH] D157112: [libc] Define long long limits if not defined

[Alex Brachet via Phabricator via llvm-commits]

abrachet created this revision.
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Some older gcc toolchains don't define these on 32 bit platforms. This
is a problem for pigweed which uses an older gcc toolchain and targets
32 bit.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D157112

Files:
  src/__support/CPP/limits.h


Index: src/__support/CPP/limits.h
===================================================================
--- src/__support/CPP/limits.h
+++ src/__support/CPP/limits.h
@@ -11,6 +11,13 @@
 
 #include <limits.h>
 
+// Some older gcc distributions don't define these for 32 bit targets.
+#ifndef LLONG_MAX
+#define LLONG_MAX (~0LL ^ (1LL << 63))
+#define LLONG_MIN (1LL << 63)
+#define ULLONG_MAX (~0ULL)
+#endif
+
 namespace __llvm_libc {
 namespace cpp {
 


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