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Detect ICC vs GCC at compile time

Tags:

c++

c

gcc

icc

predefined-macro

How to detect at compile time if I'm using gcc or icc?

(I was quite puzzled to find out that icc defines __GNUC__ -- and even __GNUC_MINOR__ and __GNUC_PATCHLEVEL__ ! why?)

like image 524
Znorg Avatar asked Apr 20 '11 21:04

Znorg

1 Answers

We use

#ifdef __INTEL_COMPILER

to split icc off, assuming gcc as a default.

like image 167
Dirk Eddelbuettel Avatar answered Sep 21 '22 08:09

Dirk Eddelbuettel
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