C++ iswupper()用法及代码示例

iswupper()是C /C++中的内置函数，该函数检查给定的宽字符是否为大写字符。它在CPP头文件中定义，并且此函数与isupper()。

用法:

int iswupper(wint_t rs)

参数：该函数接受单个强制性参数rs，该参数指定要检查的宽字符。

返回值：该函数返回两个值，如下所示：

非零值-如果rs具有大写字符
零-如果rs没有大写字符

以下示例程序旨在说明上述函数。
程序1:

// C++ program to illustrate 
// iswupper() function 
#include <bits/stdc++.h> 
using namespace std; 
int main() 
{ 
  
    wchar_t rs1 = 'S'; 
    wchar_t rs2 = 's'; 
  
    // Function to check if the character 
    // is a uppercase character or not 
    if (iswupper(rs1)) 
        wcout << rs1 << " is a uppercase character "; 
    else
        wcout << rs1 << " is not a uppercase character "; 
    wcout << endl; 
  
    if (iswupper(rs2)) 
        wcout << rs2 << " is a uppercase character "; 
    else
        wcout << rs2 << " is not a uppercase character "; 
  
    return 0; 
}

输出：

S is a uppercase character 
s is not a uppercase character

程序2:

// C++ program to illustrate 
// iswupper() function 
#include <bits/stdc++.h> 
using namespace std; 
int main() 
{ 
  
    wchar_t rs1 = 'R'; 
    wchar_t rs2 = '@'; 
  
    // Function to check if the character 
    // is a uppercase character or not 
    if (iswupper(rs1)) 
        wcout << rs1 << " is a uppercase character "; 
    else
        wcout << rs1 << " is not a uppercase character "; 
    wcout << endl; 
  
    if (iswupper(rs2)) 
        wcout << rs2 << " is a uppercase character "; 
    else
        wcout << rs2 << " is not a uppercase character "; 
  
    return 0; 
}

输出：

R is a uppercase character 
@ is not a uppercase character

相关用法

注：本文由纯净天空筛选整理自rajasethupathi大神的英文原创作品 iswupper() function in C/C++。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。