小编Mas*_*eta的帖子

我想在我的Mac上使用boost.

Mac OS X 10.7.4 Xcode 4.5

我通过自制软件安装了boost.

brew install boost

Boost版本是1.49.0.我设置了我的Xcode项目.

添加标题搜索路径.

/usr/local/Cellar/boost/1.49.0/include

添加库

libboost * .dylib

当我编译我的项目时,我有很多错误.Clang LLVM 1.0错误.(我想上传图片,但我无法上传,因为我没有超过10个声誉.)

use of undeclared identifier 'nullptr_t'; did you mean 'nullptr'?
use of undeclared identifier 'nullptr_t'; did you mean 'nullptr'?
too few template arguments for class template '__is_function'
use of undeclared identifier 'nullptr_t'; did you mean 'nullptr'?
field has incomplete type 'std::exception_ptr'
expected ';' at end of declaration list
no member named 'memcpy' in namespace 'std::__1'; did you mean 'memcpy'?
no …

我测试了这个示例代码.

Sample.h

 {

    NSString *string1;
    NSString *string2;
    NSMutableString *string3;
}

@property (assign) IBOutlet NSWindow *window;
@property (strong,nonatomic) NSString *string1;
@property (copy,nonatomic) NSString *string2;
@property (strong,nonatomic) NSMutableString *string3;

@end

Sample.m

#import "Sample.h"

@synthesize string1;
@synthesize string2;
@synthesize string3;

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    string1 = [[NSString alloc] init];
    string2 = [[NSString alloc] init];
    string3 = [[NSMutableString alloc] initWithString:@"test"];
    string2 = string3;
    string1 = string3;
    [string3 appendString:@"test"];
    NSLog(@"%@",string1);
    NSLog(@"%@",string2);
    NSLog(@"%@",string3);

}

@end

结果是

2012-09-23 00:11:48.610 sample[13468:303] testtest
2012-09-23 00:11:48.611 sample[13468:303] testtest
2012-09-23 00:11:48.611 …