Question

我想从字符串转换为整数，所以我在winapi中使用了atoi（），如下所示。当我使用atoi功能时，我遇到了这个错误信息

//just promisifying `lookup.getChildrenAsCallback`
function getChildrenAsPromise(path){
    return new Promise(function(resolve, reject){
        lookup.getChildrenAsCallback(path, function(err, children) {
            if(err) reject(err); 
            else resolve(children);
        });
    })
}

//basically the resucrive version of `getChildrenAsPromise`
function nodeSearch(path) {
    //get the direct children for this path
    return getChildrenAsPromise(path)
        //then run the recursion, get their descendants
        .then(function(nodes){
            return Promise.all(nodes.map(function(node){
                //the recursive part
                return nodeSearch(path + "/" + node);
            }))
        })
        //then flatten the result and prepend the current path
        .then(function(children){
            //children is actually an array of arrays
            //so we need to flatten it.
            var p = [ path ];
            return p.concat.apply(p, children);
        });
}

如何将字符串转换为整数？

1>d:\work\usb\isp1\isp1\source1.cpp(771): error C2664: 'int atoi(const char *)' : cannot convert argument 1 from 'wchar_t [5]' to 'const char *'
1>          Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

Answer 1

atoi用于const char *个字符串;你拥有的是wchar_t字符串。 char和wchar_t不可互换。使用wchar_t字符串的相应函数; _wtoi：

ii = _wtoi(str_a);
iii = _wtoi(str_d);

win32 atoi问题，它不能转换来自＆＃39; wchar_t [5]＆＃39; to＆＃39; const char *

1 个答案: