运行时的CPU体系结构

Question

有没有办法在运行时在MAC上找到流程架构？

我使用sizeof(int) == 4表示32位，sizeof(int) == 8表示64位。有优雅的方式吗？

Answer 1

使用@property(readonly) NSInteger executableArchitecture和NSBundle

的常量Mach-O Architecture

NSInteger architecture = [[NSRunningApplication currentApplication] executableArchitecture];
if(architecture == NSBundleExecutableArchitectureX86_64) {
    NSLog(@"running on 64bits");
else if (architecture == NSBundleExecutableArchitectureI386) {
    NSLog(@"running on 32bits");
} else {
    NSLog(@"running somewhere else");
}