/*******************************************************

* Copyright (c) 2014, ArrayFire

* All rights reserved.

*

* This file is distributed under 3-clause BSD license.

* The complete license agreement can be obtained at:

* http://arrayfire.com/licenses/BSD-3-Clause

********************************************************/

#include <af/exception.h>

#include <af/device.h>

#include <err_common.hpp>

#include <string>

#include <algorithm>

void af_get_last_error(char **str, dim_t *len)

{

std::string &global_error_string = get_global_error_string();

dim_t slen = std::min(MAX_ERR_SIZE, (int)global_error_string.size());

if (len && slen == 0) {

*len = 0;

*str = NULL;

return;

}

af_alloc_host((void**)str, sizeof(char) * (slen + 1));

global_error_string.copy(*str, slen);

(*str)[slen] = '\0';

global_error_string = std::string("");

if(len) *len = slen;

}

const char *af_err_to_string(const af_err err)

{

switch (err) {

case AF_SUCCESS: return "Success";

case AF_ERR_NO_MEM: return "Device out of memory";

case AF_ERR_DRIVER: return "Driver not available or incompatible";

case AF_ERR_RUNTIME: return "Runtime error ";

case AF_ERR_INVALID_ARRAY: return "Invalid array";

case AF_ERR_ARG: return "Invalid input argument";

case AF_ERR_SIZE: return "Invalid input size";

case AF_ERR_TYPE: return "Function does not support this data type";

case AF_ERR_DIFF_TYPE: return "Input types are not the same";

case AF_ERR_BATCH: return "Invalid batch configuration";

case AF_ERR_NOT_SUPPORTED: return "Function not supported";

case AF_ERR_NOT_CONFIGURED: return "Function not configured to build";

case AF_ERR_NONFREE: return "Function unavailable. "

"ArrayFire compiled without Non-Free algorithms support";

case AF_ERR_NO_DBL: return "Double precision not supported for this device";

case AF_ERR_NO_GFX: return "Graphics functionality unavailable. "

"ArrayFire compiled without Graphics support";

case AF_ERR_LOAD_LIB: return "Failed to load dynamic library. ";

case AF_ERR_LOAD_SYM: return "Failed to load symbol";

case AF_ERR_ARR_BKND_MISMATCH: return "There was a mismatch between an array and the current backend";

case AF_ERR_INTERNAL: return "Internal error";

case AF_ERR_UNKNOWN:

default: return "Unknown error";

}

}