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From: adr <adr@SDF.ORG>
To: 9fans <9fans@9fans.net>
Subject: Re: [9fans] Conversion of constants in C compiler
Date: Tue, 10 May 2022 14:48:09 +0000 (UTC)	[thread overview]
Message-ID: <7839d10-c58a-20c2-c23c-561188f641eb@SDF.ORG> (raw)
In-Reply-To: <942ed10-fc38-1b94-4f4c-9f2f632f86d4@SDF.ORG>

Arrrg!

[...]
        vv = yylval.vval;
        if(c1 & Numvlong ||
          (uvlong)convvtox(vv, TUVLONG) > convvtox(vv, TULONG)){
                /* unsigned suffix or hex occupying the sing bit */
                if((c1 & Numuns) || convvtox(vv, TVLONG) < 0 && (c1 & Numdec) == 0) {
                        c = LUVLCONST;
                        t = TUVLONG;
                        goto nret;
                }
                c = LVLCONST;
                t = TVLONG;
                goto nret;
        }
        if(c1 & Numlong ||
          (uvlong)convvtox(vv, TULONG) > convvtox(vv, TUINT)){
                if((c1 & Numuns) || convvtox(vv, TLONG) < 0 && (c1 & Numdec) == 0) {
                        c = LULCONST;
                        t = TULONG;
                        goto nret;
                }
                /* decimal occupying the sing bit */
                if(convvtox(vv, TLONG) < 0 && (c1 & Numdec)) {
                        c = LVLCONST;
                        t = TVLONG;
                        goto nret;
                }
                c = LLCONST;
                t = TLONG;
                goto nret;
        }
        if((c1 & Numuns) || convvtox(vv, TINT) < 0 && (c1 & Numdec) == 0) {
                c = LUCONST;
                t = TUINT;
                goto nret;
        }
        if(convvtox(vv, TINT) < 0 && (c1 & Numdec)) {
                c = LLCONST;
                t = TLONG;
                goto nret;
        }
        c = LCONST;
        t = TINT;
        goto nret;
[...]

------------------------------------------
9fans: 9fans
Permalink: https://9fans.topicbox.com/groups/9fans/T22754f10b241991c-M489f3936d41217db381e8d09
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  reply	other threads:[~2022-05-10 14:48 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-20 10:19 adr
2022-04-20 11:38 ` Charles Forsyth
2022-04-20 14:37   ` adr
2022-04-20 14:37 ` ori
2022-04-21  7:54   ` adr
2022-04-21 15:29     ` ori
2022-04-28  1:10     ` ori
2022-05-01 12:03       ` adr
2022-04-28  2:43     ` ori
2022-04-28  3:12       ` ori
2022-05-01 12:35       ` adr
2022-05-09 19:31         ` adr
2022-05-10 13:06           ` adr
2022-05-10 14:48             ` adr [this message]
2022-06-06  0:35 adr

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