c++ and also check on gtest

1 of 5 Assignment_1_Spr2020.pdf 94.0% - Q - 0 X Q1: String Manipulation Write the implementation of the following functions: 1 int Strlen(char *81) 2 /*Returns the length of the string in number of characters. */ 3 1 1 char *Strcpy( char *sl, const char *s2) 2 /* Copies string s2 into array sl. The value of sl is returned. */ 3 { 1 char *Strncpy( char *sl, const char *82, int n) 2 /* Copies at most n characters of string s2 into array sl. 3 The value of sl is returned. */ 5 1 char *StrCat( char *sl, const char *82 ) 2 /* Appends string s2 to array sl. 3 The first character of s2 overwrites the terminating null character of sl. 4 The value of sl is returned. */ 6 ) 1 char *StrnCat( char *sl, const char *82, int n) 2 /* Appends at most n characters of string s2 to array sl. | 2 of 5 Assignment_1_Spr2020.pdf 94.0% - Q - 0 X 6 } 1 char *Strncat( char *sl, const char *82, int n) 2 /* Appends at most n characters of string s2 to array sl. 3 The first character of s2 overwrites the terminating null character o 4 The value of sl is returned. */ 6 1 int StrCmp( const char *sl, const char *82) 2 /* Compares the string sl with the string 2 3 The function returns 0, less than 0 or greater than 0 if sl is equal to, 4 less than or greater than s2, respectively. */ ... 6 ] 1 int Strncmp( const char *s1,const char *82, int n) 2 /* Compares up to n characters of the string sl with the string 2 3 The function returns 0. less than 0 or greater than 0 if sl is equal to 4 less than or greater than s2, respectively. */ 1 char **Str Tok char *s1,const char s2) 2 A call to StrTok breaks stringsl into ''tokens ! 3 (logical pieces such as words in a line of text ) separated by character 4 contained in char s2*/ 1 int StrFind (char *sl, char *s2) 2 /* Searches the string sl for the first occurrence of the string s2 3 and returns its starting index, if s2 not found returns - 1.*/ 1 char * SubStr (char *, int pos, int len) 2 /*This function returns a newly constructed string with its value initialized 3 to a copy of a substring of this variable. 4 The substring is the portion of the string that starts at character position 5 ''pos" and spans ''len' characters 6 (or until the end of the string, whichever comes first). */ 7 { 8 }