check_return_cast.c (1f5207b7) | check_return_cast.c (efe51d0c) |
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1/* 2 * Copyright (C) 2012 Oracle. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 2 7 * of the License, or (at your option) any later version. 8 * --- 14 unchanged lines hidden (view full) --- 23 24static int my_id; 25 26static void match_return(struct expression *ret_value) 27{ 28 struct symbol *func_type = get_real_base_type(cur_func_sym); 29 sval_t sval; 30 | 1/* 2 * Copyright (C) 2012 Oracle. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 2 7 * of the License, or (at your option) any later version. 8 * --- 14 unchanged lines hidden (view full) --- 23 24static int my_id; 25 26static void match_return(struct expression *ret_value) 27{ 28 struct symbol *func_type = get_real_base_type(cur_func_sym); 29 sval_t sval; 30 |
31 if (!func_type || func_type->type != SYM_FN) 32 return; 33 func_type = get_real_base_type(func_type); |
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31 if (!func_type) 32 return; 33 if (!type_unsigned(func_type)) 34 return; 35 if (type_bits(func_type) > 16) 36 return; 37 if (!get_fuzzy_min(ret_value, &sval)) 38 return; 39 if (sval_is_positive(sval) || sval_cmp_val(sval, -1) == 0) 40 return; 41 42 sm_warning("signedness bug returning '%s'", sval_to_str(sval)); 43} 44 45void check_return_cast(int id) 46{ 47 my_id = id; 48 add_hook(&match_return, RETURN_HOOK); 49} | 34 if (!func_type) 35 return; 36 if (!type_unsigned(func_type)) 37 return; 38 if (type_bits(func_type) > 16) 39 return; 40 if (!get_fuzzy_min(ret_value, &sval)) 41 return; 42 if (sval_is_positive(sval) || sval_cmp_val(sval, -1) == 0) 43 return; 44 45 sm_warning("signedness bug returning '%s'", sval_to_str(sval)); 46} 47 48void check_return_cast(int id) 49{ 50 my_id = id; 51 add_hook(&match_return, RETURN_HOOK); 52} |