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const.c
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C/C++ Source or Header
|
1980-02-17
|
1KB
|
108 lines
/* Copyright (c) 1979 Regents of the University of California */
#
/*
* pxp - Pascal execution profiler
*
* Bill Joy UCB
* Version 1.2 January 1979
*/
#include "0.h"
#include "tree.h"
STATIC int constcnt -1;
/*
* The const declaration part
*/
constbeg(l, cline)
int l, cline;
{
line = l;
if (nodecl)
printoff();
puthedr();
putcm();
ppnl();
indent();
ppkw("const");
ppgoin(DECL);
constcnt = 0;
setline(cline);
}
const(cline, cid, cdecl)
int cline;
char *cid;
int *cdecl;
{
if (constcnt)
putcm();
setline(cline);
ppitem();
ppid(cid);
ppsep(" = ");
gconst(cdecl);
ppsep(";");
constcnt++;
setinfo(cline);
putcml();
}
constend()
{
if (constcnt == -1)
return;
if (nodecl)
return;
if (constcnt == 0)
ppid("{const decls}");
ppgoout(DECL);
constcnt = -1;
}
/*
* A constant in an expression
* or a declaration.
*/
gconst(r)
int *r;
{
register *cn;
cn = r;
loop:
if (cn == NIL) {
ppid("{constant}");
return;
}
switch (cn[0]) {
default:
panic("gconst");
case T_PLUSC:
ppop("+");
cn = cn[1];
goto loop;
case T_MINUSC:
ppop("-");
cn = cn[1];
goto loop;
case T_ID:
ppid(cn[1]);
return;
case T_CBINT:
case T_CINT:
case T_CFINT:
ppnumb(cn[1]);
if (cn[0] == T_CBINT)
ppsep("b");
return;
case T_CSTRNG:
ppstr(cn[1]);
return;
}
}