cannot add WString.h  ..pls help mee !! =((

Forum 2005-2010 (read only) Software Development
1

I cannot add the WString.h library.. I copied String folder into libraries folder of my appl. folder but
when I add just #include<WString.h> line It gives many error

D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:34: error: prototype for 'String::String(int)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:39: error: candidates are: String::String(long unsigned int, int)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:38: error:                 String::String(long int, int)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:37: error:                 String::String(unsigned int, int)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:36: error:                 String::String(int, int)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:35: error:                 String::String(unsigned char)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:34: error:                 String::String(char)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:33: error:                 String::String(const String&)
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:32: error:                 String::String(const char*)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp: In constructor 'String::String(const char*)':
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:50: error: '_array' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:52: error: 'setArray' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp: In copy constructor 'String::String(const String&)':
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:60: error: '_array' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:61: error: 'clear' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:62: error: 'const class String' has no member named '_array'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:62: error: 'setArray' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp: In member function 'const String& String::operator=(const String&)':
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:77: error: '_array' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:83: error: 'clear' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:84: error: 'const class String' has no member named '_array'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:84: error: 'setArray' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp: At global scope:
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:90: error: prototype for 'const String& String::operator=(const char*)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:70: error: candidate is: const String& String::operator=(const String&)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:107: error: prototype for 'const String& String::operator+=(const char*)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:44: error: candidate is: const String& String::operator+=(const String&)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:127: error: prototype for 'const String& String::operator+=(char)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:44: error: candidate is: const String& String::operator+=(const String&)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:145: error: prototype for 'const String& String::operator+=(int)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:44: error: candidate is: const String& String::operator+=(const String&)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:159: error: prototype for 'const String& String::operator+=(long int)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:44: error: candidate is: const String& String::operator+=(const String&)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp: In member function 'const String& String::operator+=(const String&)':
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:176: error: '_array' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:179: error: 'setArray' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:183: error: '_array' was not declared in this scope
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:183: error: 'const class String' has no member named '_array'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp: At global scope:
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:191: error: no 'const String& String::append(char)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:196: error: no 'const String& String::append(char*)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:201: error: no 'const String& String::append(const String&)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:206: error: no 'const String& String::append(int, int)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:217: error: no 'const String& String::append(long int, int)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:226: error: no 'const String& String::append(int)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:234: error: no 'const String& String::append(long int)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:323: error: prototype for 'char String::charAt(int)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:57: error: candidate is: char String::charAt(unsigned int) const
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:339: error: prototype for 'void String::setCharAt(int, char)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:71: error: candidate is: void String::setCharAt(unsigned int, char)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:355: error: prototype for 'boolean String::equals(char*)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:60: error: candidate is: unsigned char String::equals(const String&) const
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:366: error: prototype for 'boolean String::equals(const String&)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:60: error: candidate is: unsigned char String::equals(const String&) const
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:372: error: no 'boolean String::contains(char*)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:380: error: prototype for 'byte* String::getBytes()' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:79: error: candidate is: void String::getBytes(unsigned char*, unsigned int)
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:386: error: no 'void String::setArray(const char*)' member function declared in class 'String'
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:396: error: prototype for 'int String::indexOf(int)' does not match any in class 'String'
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:65: error: candidates are: int String::indexOf(const String&, unsigned int) const
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:64: error:                 int String::indexOf(const String&) const
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:63: error:                 int String::indexOf(char, unsigned int) const
D:\Downloads\arduino-0019\arduino-0019\hardware\arduino\cores\arduino/WString.h:62: error:                 int String::indexOf(char) const
D:\Downloads\arduino-0019\arduino-0019\libraries\String\WString.cpp:402: error: prototype for 'int String::indexOf(const String&)' does not match any in
2

The String class is incorporated into version 0019. You do not need to include WString.h any more.

3

Excellent info PaulS but do you know how to do a "contains" with the builtin string class?

4

The indexOf() function will return the location of the specified substring, or -1 if the substring is not found. So, >0 means the string on the left of the . contains the value in the (), and -1 means it does not.