本文整理匯總了C++中std::islower方法的典型用法代碼示例。如果您正苦於以下問題：C++ std::islower方法的具體用法？C++ std::islower怎麽用？C++ std::islower使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類std的用法示例。
在下文中一共展示了std::islower方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C++代碼示例。
示例1: main
int main()
{
cout << "According to islower:\n"
<< ( islower( 'p' ) ? "p is a" : "p is not a" )
<< " lowercase letter\n"
<< ( islower( 'P' ) ? "P is a" : "P is not a" )
<< " lowercase letter\n"
<< ( islower( '5' ) ? "5 is a" : "5 is not a" )
<< " lowercase letter\n"
<< ( islower( '!' ) ? "! is a" : "! is not a" )
<< " lowercase letter\n";
cout << "\nAccording to isupper:\n"
<< ( isupper( 'D' ) ? "D is an" : "D is not an" )
<< " uppercase letter\n"
<< ( isupper( 'd' ) ? "d is an" : "d is not an" )
<< " uppercase letter\n"
<< ( isupper( '8' ) ? "8 is an" : "8 is not an" )
<< " uppercase letter\n"
<< ( isupper('$') ? "$ is an" : "$ is not an" )
<< " uppercase letter\n";
cout << "\nu converted to uppercase is "
<< static_cast< char >( toupper( 'u' ) )
<< "\n7 converted to uppercase is "
<< static_cast< char >( toupper( '7' ) )
<< "\n$ converted to uppercase is "
<< static_cast< char >( toupper( '$' ) )
<< "\nL converted to lowercase is "
<< static_cast< char >( tolower( 'L' ) ) << endl;
return 0;
} // end main示例2: main
int main(int argc, const char *argv[])
{
string str("hello world!");
cout << "before: " << str << endl;
string::iterator iter = str.begin();
while (iter != str.end())
{
if (islower(*iter))
*iter = toupper(*iter);
++iter;
}
cout << "after: " << str << endl;
return 0;
}示例3: printLatinWord
void printLatinWord( char *x )
{
char *y = x;
int size = 0;
while( *y != '\0' )
{
size++;
y++;
}
char arr[ size + 3 ];
strcpy( arr, x );
char copy = arr[ 0 ];
if ( islower( copy ) == false )
{
copy = tolower( copy );
arr[ size - 1 ] = toupper( arr[ size - 1 ] );
}
arr[ 0 ] = arr[ size - 1 ];
arr[ size - 1 ] = copy;
arr[ size ] = 'a';
arr[ size + 1 ] = 'y';
arr[ size + 2 ] = '\0';
cout << arr << ' ';
}