我试图编译书Programming in Lua
中提供的示例但仅适用于lua 5.1,在5.2上执行此操作的步骤是什么?
这是我正在使用的代码
#include <stdio.h>
#include <string.h>
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
int main (void) {
char buff[256];
int error;
lua_State *L = lua_open(); /* opens Lua */
luaL_openlibs(L);
while (fgets(buff, sizeof(buff), stdin) != NULL) {
error = luaL_loadbuffer(L, buff, strlen(buff), "line") ||
lua_pcall(L, 0, 0, 0);
if (error) {
fprintf(stderr, "%s", lua_tostring(L, -1));
lua_pop(L, 1); /* pop error message from the stack */
}
}
lua_close(L);
return 0;
}
使用gcc test01.c -I/usr/include/lua5.2 -L/usr/lib/x86_64-linux-gnu -llua5.2
进行编译后,我收到以下错误:
test01.c: In function ‘main’:
test01.c:10:18: warning: initialization makes pointer from integer without a cas
t [enabled by default]
lua_State *L = lua_open(); /* opens Lua */
^
/tmp/ccyPRlV3.o: In function `main':
test01.c:(.text+0x21): undefined reference to `lua_open'
collect2: error: ld returned 1 exit status
提前谢谢。
答案 0 :(得分:9)
luaopen()
已不再使用,已由luaL_newstate
替换,您可以使用luaL_newstate
创建具有标准分配函数的状态:
lua_State *L = luaL_newstate(); /* opens Lua */
luaL_openlibs(L); /* opens the standard libraries */
此API已更改since Lua 5.1
答案 1 :(得分:2)
尝试:
lua_State *L = lua_newstate();