Handle errors

After each call to an Algone function, you should check whether an error has occurred. You can handle errors through the functions ALG_HasError(), ALG_GetError() and ALG_PrintError().

Print error

If you just want to print the error on the standard output stream, you can use the ALG_PrintError() function. For instance, if you use the ALG_CreateNetworkFromFile() with a wrong path, you can handle errors by the following code :

FILE *file = fopen("path/to/badly_formatted_file.model.alg", "r");
ALG_Network* n = ALG_CreateNetworkFromFile(file);

if (ALG_HasError()) {
    ALG_PrintError()
}

The function ALG_PrintError() will print error on the standard output stream.

Get error

If you want to be more precise when you handle errors, instead of using ALG_PrintError() you can use ALG_GetError(). This function returns an ALG_Error struct that contains the error code and the error message.

For instance :

// Create a network from a badly formatted file
FILE *file = fopen("path/to/badly_formatted_file.model.alg", "r");
ALG_Network* n = ALG_CreateNetworkFromFile(file);

// Handle the error
if (ALG_HasError()) {
    ALG_Error* e = ALG_GetError();

    if (e.code == ALG_INCOMPATIBLE_ERROR) {
        // do something ...
    }
}