Comments on: Vivado HLS and the “no function body” error: Using a C++ function in plain C code https://billauer.se/blog/2016/12/vivado-hls-extern-c/ Anything I found worthy to write down. Thu, 26 Mar 2026 13:15:15 +0000 hourly 1 http://wordpress.org/?v=3.1.2 By: J https://billauer.se/blog/2016/12/vivado-hls-extern-c/comment-page-1/#comment-1261 J Mon, 22 May 2017 21:09:54 +0000 https://billauer.se/blog/?p=5038#comment-1261 Hi there, I am encountering the same problem as stated here. Unfortunately I could not resolve it using this method(have tried multiple variants of this). I have a .cpp that uses a couple of #include functions like cexp() and csqrt(). Still getting these errors: ERROR: [SYNCHK 200-71] function 'csqrt' has no function body. ERROR: [SYNCHK 200-71] function 'cexp' has no function body. Can you give me some insight into this please? Thanks! Hi there,

I am encountering the same problem as stated here. Unfortunately I could not resolve it using this method(have tried multiple variants of this). I have a .cpp that uses a couple of #include functions like cexp() and csqrt().

Still getting these errors:

ERROR: [SYNCHK 200-71] function ‘csqrt’ has no function body.
ERROR: [SYNCHK 200-71] function ‘cexp’ has no function body.

Can you give me some insight into this please?

Thanks!

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