NSData + Base64.m中的XCode标记类型错误

本文介绍了NSData + Base64.m中的XCode标记类型错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

错误如下图所示

- (id) initWithBase64EncodedString:(NSString *) string {
    NSMutableData *mutableData = nil;

    if( string ) {
        unsigned long ixtext = 0;
        unsigned long lentext = 0;
        unsigned char ch = 0;
        unsigned char inbuf[4], outbuf[4];
        short i = 0, ixinbuf = 0;
        BOOL flignore = NO;
        BOOL flendtext = NO;
        NSData *base64Data = nil;
        const unsigned char *base64Bytes = nil;

        // Convert the string to ASCII data.
        base64Data = [string dataUsingEncoding:NSASCIIStringEncoding];
        base64Bytes = [base64Data bytes];
        mutableData = [NSMutableData dataWithCapacity:[base64Data length]];
        lentext = [base64Data length];

    }

我也进入了另一个名为

- (NSString *) base64EncodingWithLineLength:(unsigned int) lineLength {
    **const unsigned char   *bytes = [self bytes];**
    NSMutableString *result = [NSMutableString stringWithCapacity:[self length]];

}

推荐答案

您可以通过强制类型转换来解决该错误...但是不确定数据是否在同一格式中.

You can resolve that error by type casting...but not sure data is in same formate..

    base64Bytes = (const unsigned char*)[base64Data bytes];

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