如何找到lpcstr的长度

LPCTSTR lstrlen() strlen() MSDN

strtol endptr

strlen()

size_t len = strlen( szNumber );

strlen '\0'

LPCSTR lpText = "test";
long lTextLen = CString(lpText).GetLength();

#include <sstream>
#include <iostream>

typedef char const *LPCSTR;

template <class T>
bool check_read(LPCSTR input, T &val) { 
    std::istringstream reader(input);

    reader >> val;
    char ch;
    if (reader >> ch) {
        std::cerr << "\nUnconverted character: " << ch << std::endl;
        return false;
    }
    return true;
}

int main() { 
    LPCSTR inputs[] = {"12345", "54321a"};
    int a;

    for (int i=0; i<2; i++) {
        check_read(inputs[i], a);
        std::cout << "Converted: " << a << std::endl;
    }
    return 0;
}

LPCSTR const char* strlen

lstrlenA