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Fix runtime error (left shift of negative value)

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Runtime error:

    src/training/util.h:37:28: runtime error: left shift of negative value -17

Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2019-03-10 20:44:38 +01:00
parent 59cd716609
commit 896698a4f5
1 changed files with 4 additions and 5 deletions
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9
src/training/util.h
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@ -2,7 +2,6 @@
* File: util.h * File: util.h
* Description: Misc STL string utility functions. * Description: Misc STL string utility functions.
* Author: Samuel Charron * Author: Samuel Charron
* Created: Mon Nov 18 2013
* *
* (C) Copyright 2013, Google Inc. * (C) Copyright 2013, Google Inc.
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
@ -32,8 +31,8 @@
struct StringHash { struct StringHash {
size_t operator()(const std::string& s) const { size_t operator()(const std::string& s) const {
size_t hash_code = 0; size_t hash_code = 0;
const char* str = s.c_str(); const uint8_t* str = reinterpret_cast<const uint8_t*>(s.c_str());
for (int ch = 0; str[ch] != 0; ++ch) { for (unsigned ch = 0; str[ch] != 0; ++ch) {
hash_code += str[ch] << (ch % 24); hash_code += str[ch] << (ch % 24);
} }
return hash_code; return hash_code;
@ -43,8 +42,8 @@ struct StringHash {
struct StringHash : public stdext::hash_compare <std::string> { struct StringHash : public stdext::hash_compare <std::string> {
size_t operator()(const std::string& s) const { size_t operator()(const std::string& s) const {
size_t hash_code = 0; size_t hash_code = 0;
const char* str = s.c_str(); const uint8_t* str = reinterpret_cast<const uint8_t*>(s.c_str());
for (int ch = 0; str[ch] != 0; ++ch) { for (unsigned ch = 0; str[ch] != 0; ++ch) {
hash_code += str[ch] << (ch % 24); hash_code += str[ch] << (ch % 24);
} }
return hash_code; return hash_code;