Close a file pointer in Cuda (nvcc)?

When NVCC compiles your . Cu file, it delegates the compilation of the C/C++ parts of the file to your native C/C++ compiler ( gcc in your case). So, the error is coming from gcc.

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In gcc, the close function is used to close the file pointer. However my nvcc complier will not allow that. I can't seem to find a cuda-specific call or alias.

Is there a special cuda file pointer close? This is the error I get. Error: identifier "close" is undefined For this simple code; FILE* fp = fopen(filename,"r"); if(fp == NULL) { return NULL; } close(fp); cuda compiler-errors nvcc link|improve this question asked Apr 13 '11 at 20:41Ray3011668 83% accept rate.

2 Try fclose(). Nvcc is not touching the code, it is being compiled with your host compiler and the error and the question have nothing to do with CUDA. – talonmies Apr 13 '11 at 20:50.

When NVCC compiles your . Cu file, it delegates the compilation of the C/C++ parts of the file to your native C/C++ compiler (gcc in your case). So, the error is coming from gcc.

You need to check why gcc is producing this error for the code in this file. Most probably, you have not included the necessary header file where close() is defined, unistd.h. Or try fclose() as another commenter has suggested.

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