aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Just another update

Browse source
This commit is contained in:
Ingy döt Net 2015-02-20 00:35:01 -05:00
parent a25938f123
commit 00a190b0a6
6591 changed files with 94363 additions and 23227 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Task/Call-a-foreign-language-function/Lua/call-a-foreign-language-function.lua Normal file
View file

@ -0,0 +1,14 @@
local ffi = require("ffi")
ffi.cdef[[
char * strndup(const char * s, size_t n);
int strlen(const char *s);
]]
local s1 = "Hello, world!"
print("Original: " .. s1)
local s_s1 = ffi.C.strlen(s1)
print("strlen: " .. s_s1)
local s2 = ffi.string(ffi.C.strndup(s1, s_s1), s_s1)
print("Copy: " .. s2)
print("strlen: " .. ffi.C.strlen(s2))