70 lines
1.2 KiB
C
70 lines
1.2 KiB
C
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/* Variant of s_cat that allows the target of a concatenation to */
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/* appear on its right-hand side (contrary to the Fortran 77 Standard). */
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#include "f2c.h"
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#undef abs
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#ifdef KR_headers
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extern char *malloc();
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extern void free();
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#else
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#include "stdlib.h"
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#endif
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#include "string.h"
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static VOID
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#ifdef KR_headers
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s_cat0(lp, rpp, rnp, n, ll) char *lp, *rpp[]; ftnlen rnp[], n, ll;
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#else
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s_cat0(char *lp, char *rpp[], ftnlen rnp[], ftnlen n, ftnlen ll)
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#endif
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{
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ftnlen i, nc;
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char *rp;
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for(i = 0 ; i < n ; ++i) {
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nc = ll;
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if(rnp[i] < nc)
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nc = rnp[i];
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ll -= nc;
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rp = rpp[i];
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while(--nc >= 0)
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*lp++ = *rp++;
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}
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while(--ll >= 0)
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*lp++ = ' ';
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}
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VOID
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#ifdef KR_headers
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s_cat(lp, rpp, rnp, np, ll) char *lp, *rpp[]; ftnlen rnp[], *np, ll;
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#else
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s_cat(char *lp, char *rpp[], ftnlen rnp[], ftnlen *np, ftnlen ll)
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#endif
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{
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ftnlen i, L, m, n;
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char *lpe, *rp;
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n = *np;
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lpe = lp;
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L = ll;
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i = 0;
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while(i < n) {
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rp = rpp[i];
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m = rnp[i++];
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if (rp >= lpe || rp + m <= lp) {
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if ((L -= m) <= 0) {
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n = i;
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break;
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}
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lpe += m;
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continue;
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}
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lpe = malloc(ll);
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s_cat0(lpe, rpp, rnp, n, ll);
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memcpy(lp, lpe, ll);
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free(lpe);
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return;
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}
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s_cat0(lp, rpp, rnp, n, ll);
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}
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