Question

我在64位CentOS 6.x中构建C ++项目时遇到一些错误。该项目已在32位CentOS 6.x中成功构建。虽然有一些关于这些类型的错误的线索，但我需要更多的澄清。错误是 -

/usr/include/sys/types.h:198: error: conflicting declaration ‘typedef long int int64_t’
./Headers/PALsystypes.h:22: error: ‘int64_t’ has a previous declaration as ‘typedef long  long int int64_t’
/usr/include/sys/types.h:204: error: conflicting declaration ‘typedef long unsigned int u_int64_t’
./Headers/PALsystypes.h:23: error: ‘u_int64_t’ has a previous declaration as ‘typedef long long unsigned int u_int64_t’

还有更多错误，如下所示 -

d5-x86_64.o md5-x86_64.s
md5-x86_64.s: Assembler messages:
md5-x86_64.s:41: Error: 0xd76aa478 out range of signed 32bit displacement
md5-x86_64.s:50: Error: 0xe8c7b756 out range of signed 32bit displacement
md5-x86_64.s:68: Error: 0xc1bdceee out range of signed 32bit displacement
md5-x86_64.s:77: Error: 0xf57c0faf out range of signed 32bit displacement
md5-x86_64.s:95: Error: 0xa8304613 out range of signed 32bit displacement
md5-x86_64.s:104: Error: 0xfd469501 out range of signed 32bit displacement
md5-x86_64.s:122: Error: 0x8b44f7af out range of signed 32bit displacement
md5-x86_64.s:131: Error: 0xffff5bb1 out range of signed 32bit displacement

请给我这篇文章的任何反馈。

Answer 1

typedef int foo;
typedef float foo;

请参阅，这是最小的例子，这与32位或64位无关。问题是某些头文件声明的符号比另一个已声明的符号，并且以不兼容的方式执行。我责怪PALsystypes，它没有任何业务声明特别是int64_t，它应该来自系统的stdint.h。

关于汇编程序警告，请考虑使用无符号整数，包括变量和常量（0x123u是无符号的）。

在CentOS 6.x 64位操作系统中构建C ++项目的错误

1 个答案: