diff options
Diffstat (limited to 'lib/libF77/s_cat.c')
| -rw-r--r-- | lib/libF77/s_cat.c | 80 |
1 files changed, 63 insertions, 17 deletions
diff --git a/lib/libF77/s_cat.c b/lib/libF77/s_cat.c index 7f55cd5..1d6fd24 100644 --- a/lib/libF77/s_cat.c +++ b/lib/libF77/s_cat.c @@ -1,25 +1,71 @@ +/* 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 -VOID s_cat(lp, rpp, rnp, np, ll) char *lp, *rpp[]; ftnlen rnp[], *np, ll; +s_cat(lp, rpp, rnp, np, ll) char *lp, *rpp[]; ftnlen rnp[], *np, ll; #else -VOID s_cat(char *lp, char *rpp[], ftnlen rnp[], ftnlen *np, ftnlen ll) +s_cat(char *lp, char *rpp[], ftnlen rnp[], ftnlen *np, ftnlen ll) #endif { -ftnlen i, n, nc; -char *f__rp; + ftnlen i, nc; + char *rp; + ftnlen n = *np; +#ifndef NO_OVERWRITE + ftnlen L, m; + char *lp0, *lp1; -n = *np; -for(i = 0 ; i < n ; ++i) - { - nc = ll; - if(rnp[i] < nc) - nc = rnp[i]; - ll -= nc; - f__rp = rpp[i]; - while(--nc >= 0) - *lp++ = *f__rp++; + 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"); + } +#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 } -while(--ll >= 0) - *lp++ = ' '; -} |
