通过Android NDK编译c ++文件时出错

Question

我尝试编译一些库并得到错误：

In file included from *************************:
F:/include/strutils.h:40:37: error: expected ';', ',' or ')' before 'dest'
 extern void *mempcpy(void *restrict dest, const void *restrict src, size_t n);

这是strutils.h：

#ifndef HAVE_MEMPCPY
extern void *mempcpy(void *restrict dest, const void *restrict src, size_t n);
#endif

有什么不对？

Answer 1

它无法识别限制词。

如果是C文件，您可能需要指定一个命令行开关来告诉它识别C99关键字。 https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html

可替换地，

#define restrict

或者可能

#define restrict __restrict__

如果 .cpp 文件中包含 strutils.h ： C++ does not have standard support for restrict, but many compilers have equivalents which usually work in both C++ and C, such as the GNU Compiler Collection __restrict__