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From: Jonathan Wakely <>
Subject: [committed] libstdc++: Do not use fast_float for 16-bit size_t [PR104870]
Date: Thu, 10 Mar 2022 23:45:59 +0000	[thread overview]
Message-ID: <> (raw)

Tested x86_64-linux and built on msp430-elf, pushed to trunk.

-- >8 --

The preprocessor condition for using fast_float should match the one in
the header, and require at least 32-bit size_t.


	PR libstdc++/104870
	* src/c++17/ Check __SIZE_WIDTH__ >= 32
	before using fast_float.
 libstdc++-v3/src/c++17/ | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libstdc++-v3/src/c++17/ b/libstdc++-v3/src/c++17/
index ba1345db3f2..ba0426b3344 100644
--- a/libstdc++-v3/src/c++17/
+++ b/libstdc++-v3/src/c++17/
@@ -61,7 +61,8 @@
 extern "C" __ieee128 __strtoieee128(const char*, char**);
+    && __SIZE_WIDTH__ >= 32
 # define USE_LIB_FAST_FLOAT 1
 # if __LDBL_MANT_DIG__ == __DBL_MANT_DIG__

                 reply	other threads:[~2022-03-10 23:46 UTC|newest]

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