$ Kernighan & Ritchie, (1978) _The C Programming Language_, 180,207-208 $
#define
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#endif
#if
#ifdef
#ifndef
#include
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#undef
auto
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case
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continue
default
do
double
else
entry
extern
float
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goto
if
int
long
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return
short
sizeof
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struct
switch
typedef
union
unsigned
while
