112     char *arena; // string/data storage for steps  member
233         char *a = mut->arena + mut->aused;  in mut_step_i()
251     const char *str = mut->arena + c->str;  in mut_step_r()
361         char *a = mut->arena + mut->aused;  in mut_step_i()
379     const char *str = mut->arena + c->str;  in mut_step_r()
401         char *a = mut->arena + mut->aused;  in mut_step_i()
419     const char *str = mut->arena + c->str;  in mut_step_r()
517     char *a = mut->arena + mut->aused;  in mut_step_i()
565     const char *str = mut->arena + c->str;  in mut_step_r()
601         char *a = mut->arena + mut->aused;  in mut_step_i()
622     const char *str = mut->arena + c->str.str;  in mut_step_r()
899     mut->arena = malloc(size);  in mcp_mutator_new()
900     if (mut->arena == NULL) {  in mcp_mutator_new()
1088     if (mut->arena) {  in mcplib_mutator_gc()
1089         free(mut->arena);  in mcplib_mutator_gc()
1090         mut->arena = NULL;  in mcplib_mutator_gc()