在函数 strToInt 中正确使用三元运算符 (C)

proper use of the ternary operator in a function strToInt (C)

for (minus == false ? i = 0 : i = 1; string[i] >= '0' && string[i] <= '9'; ++i)
    {
        intValue = string[i] - '0';

        minus == false ? result = result * 10 + intValue : 
            result = result * 10 - intValue;

    }

error: expression is not assignable screenshot - http://share.pho.to/AarcJ

https://codeshare.io/5Pdd7X

由于运算符优先规则,

minus == false ? i = 0 : i = 1 将被解析为 (minus == false ? i = 0 : i) = 1。在计算 minus == false ? i = 0 : i 后,运算符 = 的左侧将变为右值,但赋值运算符必须将左值作为其左操作数。
将其更改为 minus == false ? (i = 0) : (i = 1)

使用(举例)

for (i = minus? 1:0; string[i].... etc

还有...

result = result * 10 + minus? (-lastvalue) : lastvalue;