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built-in functions
From: |
Bruno Schneider |
Subject: |
built-in functions |
Date: |
Fri, 11 Sep 2015 10:38:04 -0700 (PDT) |
User-agent: |
G2/1.0 |
Hi, I'm trying to compile code with the __builtin_uadd_overflow function. I'm
using g++ 4.9.2. However, the compiler tells me it is not declared.
Thinking it could be some restriction to g++, I made a tiny C program with the
function. Then gcc compiled it, but did not link (undefined reference to
`__builtin_uadd_overflow').
How can I use this function? Can I use it on a C++ program?
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