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I have an error in my program: "could not convert from string to char*". How do I perform this conversion?
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We can convert String to char in java using charAt() method of String class. The charAt() method returns a single character only. To get all characters, you can use loop.
This last part of the definition is important: all C-strings are char arrays, but not all char arrays are c-strings. C-strings of this form are called “string literals“: const char * str = "This is a string literal.
char* means a pointer to a character. In C strings are an array of characters terminated by the null character.
char* is a pointer to a character. char is a character. A string is not a character. A string is a sequence of characters.
If you can settle for a const char*, you just need to call the c_str() method on it:
const char *mycharp = mystring.c_str(); If you really need a modifiable char*, you will need to make a copy of the string's buffer. A vector is an ideal way of handling this for you:
std::vector<char> v(mystring.length() + 1); std::strcpy(&v[0], mystring.c_str()); char* pc = &v[0];If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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