https://stackoverflow.com › questions › 347949

To obtain a readable null-terminated const char* from a std::string, use the .c_str() method. It returns a C-style string that is guaranteed to be null-terminated. Note that the .data() method is NOT the same thing, as it is NOT guaranteed to be null-terminated! Example: std::string str = "hello world"; printf("%s\n", str.c_str ...

https://stackoverflow.com › questions › 4207737

std::string::c_str() gets you a const char* pointer to a character array that represents the string (null-terminated). You should not manipulate the data this pointer points to, so if you need to do that, copy the data.

https://www.techiedelight.com › convert-std-string-const-char-cpp

Learn how to convert a std::string to const char* in C++ using three different methods: string::c_str, string::data, and &str[0]. See the code examples, output, and explanations for each method.

https://www.techiedelight.com › fr › convert-std-string-const-char-cpp

Cet article explique comment convertir un std::string en const char* en C++. Le pointeur renvoyé doit pointer vers un tableau de caractères contenant la même séquence de caractères que celle présente dans l'objet chaîne et un terminateur nul supplémentaire à la fin.

https://www.geeksforgeeks.org › how-to-convert-std-string-to-char-in-cpp

Learn how to use the std::string:c_str() method to convert a std::string to a char* in C++. See an example program, input and output, and time and space complexity analysis.

https://www.techiedelight.com › convert-st

Learn how to convert a std::string to char* in C++ using different methods, such as const_cast, strcpy, new, std::copy, std::vector, and std::begin. See the code examples, output, and explanations for each method.

https://riptutorial.com › cplusplus › example › 2165 › conversion-to--const--char-

Learn how to convert a std::string to a const char* or a modifiable char* using different methods in C++. See examples, explanations and code snippets for C++11 and C++17 standards.

https://www.tutorialspoint.com › how-to-convert-a-std-string-to-const-char-or-char-in...

Learn how to use c_str() function to convert C++ string (std::string) to const char* or char*, which are C style strings. See example code and output for string splitting using strtok().

https://en.cppreference.com › w › cpp › string › basic_string › stol

Discards any whitespace characters (as identified by calling std::isspace) until the first non-whitespace character is found, then takes as many characters as possible to form a valid base-n (where n= base) integer number representation and converts them to an integer value.The valid integer value consists of the following parts: ...