CODEWITHSUNDEEP
ccudawarningsnvcc
mjedmonds
mjedmonds

Reputation: 51

NVCC: warning: allowing all exceptions is incompatible with previous function

I'm trying to actually use -Wall and remove all warnings in my current program. I know this isn't required but it seems like it can't hurt and hasn't proven to be too time consuming.

I'm using sockets to communicate between two programs: one in C++11 (with c sections) and another in CUDA (so NVCC as the compiler). The socket creation is very similar, and in order to prevent warnings I have written lines such as:

#include<string.h>
extern char* strcpy(char*,const char*);

This forward declaration works great with gcc/g++ to prevent a warning like:

source.c:33:4: warning: implicit declaration of function ‘strcpy’ [-Wimplicit-function-declaration] 
strcpy(saun.sun_path,CUDA_SOCKET_ADDR);

source.c:33:4: warning: incompatible implicit declaration of built-in function ‘strcpy’ [enabled by default]

However, the same code on the NVCC program yields another warning:

CUDAsource.cuh(26): warning: allowing all exceptions is incompatible with previous function "strcpy"
/usr/include/string.h(129): here

Is there another setting I need to set in my makefile? Currently the C side has the following flags:

-g -O0 -Wall -std=c99

and nvcc has:

-g -G

Any tips would be appreciated.

Thanks.

Upvotes: 1

Views: 1685

Answers (1)

mjedmonds
mjedmonds

Reputation: 51

Removing the extern definitions and adding -D_GNU_SOURCE to the compiler flags resolved the issue.

Upvotes: 2

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