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Pragmatic directives: Difference between revisions
→{{header|Lua}}: added Lua solution
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val s = "To be suppressed"
}</lang>
=={{header|Lua}}==
Lua itself really doesn't have anything equivalent. However, if being used in a mixed/hosted/embedded environment, the <code>ffi</code> library might be encountered, which supports <code>pragma pack</code> to facilitate native type interchange:
<lang lua>ffi = require("ffi")
ffi.cdef[[
#pragma pack(1)
typedef struct { char c; int i; } foo;
#pragma pack(4)
typedef struct { char c; int i; } bar;
]]
print(ffi.sizeof(ffi.new("foo")))
print(ffi.sizeof(ffi.new("bar")))</lang>
{{out}}
<pre>5
8</pre>
=={{header|Mathematica}}/{{header|Wolfram Language}}==
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