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The following example uses sprintf to write the name of a file to a string buffer, filename. This name is made up of the word "log", an underscore, the value of i,and the file suffix.
int index = 56; char filename, * suffix = "txt"; sprintf(filename, "log_%d.%s", index, suffix); lr_output_message ("The new file name is %s", filename);
Action.c(9): The new file name is log_56.txt