string array damaged at unknown moment

[Jivanmukta]

I have an object of class source_file:

class source_file {
private:
std::wstring source_file_path;
int current_source_line_no;
bool inside_php, start_inside_php;
int num_source_lines, too_long_line_number;
std::vector<std::string> source_lines;
std::vector<std::pair<int, std::string>> tokenized_lines;
std::vector<std::pair<int, std::string>>::const_iterator
current_tokenized_lines_iter;
size_t max_line_len, too_long_line_len, max_found_line_len;
public:
source_file(size_t max_line_length = 0) { // 0 means 'no limit'
max_line_len = max_line_length;
too_long_line_len = 0;
max_found_line_len = 0;
current_source_line_no = -1;
num_source_lines = 0;
current_tokenized_lines_iter = tokenized_lines.end();
too_long_line_number = 0;
inside_php = start_inside_php = false;
}
size_t get_max_found_line_length() const {
return max_found_line_len;
}
size_t get_too_long_line_length() const {
return too_long_line_len;
}
int get_too_long_line_number() const {
return too_long_line_number;
}
bool open(std::wstring in_file_path);
void close() {
source_lines.clear();
tokenized_lines.clear();
too_long_line_len = 0;
max_found_line_len = 0;
num_source_lines = 0;
current_source_line_no = -1;
}
void rewind() { // go to begin of file
current_source_line_no = -1;
current_tokenized_lines_iter = tokenized_lines.begin();
inside_php = start_inside_php = false;
}
bool get_next_line(std::string &line);
bool change_current_line(std::string line, bool ltrim_line);
void ltrim_current_line();
void get_contents(std::vector<std::string> &contents);
bool change_file_with_contents(const std::vector<std::string>
&contents, unsigned int defines_line_num = 0, unsigned int
defines_num_lines = 0);
void remove_magic_str(); // obejście dla problemu pozostających
magic_str
void write(std::wstring out_file_path) const {
std::ofstream out_file(shortwstr2str(out_file_path));
for (std::string line : source_lines) {
out_file << line << std::endl;
}
}
void tokenize_file(std::string token_name_delim_str);
bool get_next_line_with_tokenized(std::string &line, std::string
&tokenized_line);
};

Although the file is loaded correctly by method open(), I have a problem
of spoilt string in source_lines[813], I mean get_next_line() returns
spoilt line. I don't know the moment of time source_lines[813] is
damaged - I use VSCodium but conditional breakpoints don't work.
Please help: how to get the point in code at which source_lines[813] is
damaged.

[Frederick Virchanza Gotham]

On Thursday, July 28, 2022 at 7:46:25 AM UTC+1, Jivanmukta wrote:
> Although the file is loaded correctly by method open(), I have a problem
> of spoilt string in source_lines[813], I mean get_next_line() returns
> spoilt line. I don't know the moment of time source_lines[813] is
> damaged - I use VSCodium but conditional breakpoints don't work.
> Please help: how to get the point in code at which source_lines[813] is
> damaged.

If your compiler is either 'g++' or 'clang++', then compile
with the following command line options:
-fsanitize=address -D_GLIBCXX_DEBUG

Run your program and you will get debugging info on screen
when there's an invalid access.