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