将二进制字符串转换为NSInteger

4

有没有Objective-C代码将二进制字符串转换为NSInteger的?

例如:

111000 -> 56
1个回答

12
const char* utf8String = [binaryString UTF8String];
const char* endPtr = NULL;
long int foo = strtol(utf8String, &endPtr, 2);

if (endPtr != utf8String + strlen(utf8String))
{
    // string wasn't entirely a binary number
}
if (errno == ERANGE && (foo == LONG_MAX || foo == LONG_MIN))
{
    // number was too big or too small
}

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