76 lines
1.3 KiB
C
76 lines
1.3 KiB
C
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/* Unless compiled with -DNO_OVERWRITE, this variant of s_cat allows the
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* target of a concatenation to appear on its right-hand side (contrary
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* to the Fortran 77 Standard, but in accordance with Fortran 90).
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*/
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#include "f2c.h"
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#ifndef NO_OVERWRITE
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#include <stdio.h>
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#undef abs
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#ifdef KR_headers
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extern char *F77_aloc();
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extern void free();
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extern void G77_exit_0 ();
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#else
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#undef min
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#undef max
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#include <stdlib.h>
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extern char *F77_aloc(ftnlen, char*);
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#endif
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#include <string.h>
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#endif /* NO_OVERWRITE */
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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, nc;
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char *rp;
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ftnlen n = *np;
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#ifndef NO_OVERWRITE
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ftnlen L, m;
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char *lp0, *lp1;
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lp0 = 0;
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lp1 = 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 >= lp1 || 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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lp1 += m;
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continue;
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}
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lp0 = lp;
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lp = lp1 = F77_aloc(L = ll, "s_cat");
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break;
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}
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lp1 = lp;
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#endif /* NO_OVERWRITE */
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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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#ifndef NO_OVERWRITE
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if (lp0) {
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memcpy(lp0, lp1, L);
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free(lp1);
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}
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#endif
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}
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