graph_strm 360 pengine/ptest.c FILE *graph_strm = fopen(graph_file, "w"); graph_strm 362 pengine/ptest.c if (graph_strm == NULL) { graph_strm 365 pengine/ptest.c if (fprintf(graph_strm, "%s\n\n", msg_buffer) < 0) { graph_strm 368 pengine/ptest.c fflush(graph_strm); graph_strm 369 pengine/ptest.c fclose(graph_strm);