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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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listings
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v_11_12
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allison
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tstr.cpp
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C/C++ Source or Header
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1993-10-10
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1KB
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46 lines
LISTING 3 - Illustrates the String Class
// tstr.cpp: Test the string class
#include <iostream.h>
#include "string.hpp"
main()
{
size_t pos;
string s1("Hello"), s2 = ", there, you fool! ", s3;
// Concatenation
cout << "s1 + s2 == " << s1+s2 << endl;
s1 += s2;
cout << "Now s1 == " << s1 << endl;
// Searching
if ((pos = s1.find("o")) != NPOS)
cout << "find(\"o\"): " << pos << endl;
cout << "s1.substr(4,10) == " << s1.substr(4,10) << endl;
if ((pos = s1.find_first_of("abcde")) != NPOS)
cout << "find_first_of(abcde): " << pos << endl;
if ((pos = s1.find_first_not_of("abcde")) != NPOS)
cout << "find_first_not_of(abcde): " << pos << endl;
// Subscripting
s3 = "This is a char* constant";
cout << "s3[0] == " << s3.get_at(0) << endl;
s3.put_at(3,'3');
s3.put_at(s3.length(),'!');
cout << "Now s3 == " << s3 << endl;
return 0;
}
/* OUTPUT:
s1 + s2 == Hello, there, you fool!
Now s1 == Hello, there, you fool!
find("o"): 4
s1.substr(4,10) == o, there,
find_first_of(abcde): 1
find_first_not_of(abcde): 0
s3[0] == T
Now s3 == Thi3 is a char* constant!
*/