c@427: /* Unless compiled with -DNO_OVERWRITE, this variant of s_copy allows the
c@427:  * target of an assignment to appear on its right-hand side (contrary
c@427:  * to the Fortran 77 Standard, but in accordance with Fortran 90),
c@427:  * as in  a(2:5) = a(4:7) .
c@427:  */
c@427: 
c@427: #include "f2c.h"
c@427: #ifdef __cplusplus
c@427: extern "C" {
c@427: #endif
c@427: 
c@427: /* assign strings:  a = b */
c@427: 
c@427: #ifdef KR_headers
c@427: VOID s_copy(a, b, la, lb) register char *a, *b; ftnlen la, lb;
c@427: #else
c@427: void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb)
c@427: #endif
c@427: {
c@427: 	register char *aend, *bend;
c@427: 
c@427: 	aend = a + la;
c@427: 
c@427: 	if(la <= lb)
c@427: #ifndef NO_OVERWRITE
c@427: 		if (a <= b || a >= b + la)
c@427: #endif
c@427: 			while(a < aend)
c@427: 				*a++ = *b++;
c@427: #ifndef NO_OVERWRITE
c@427: 		else
c@427: 			for(b += la; a < aend; )
c@427: 				*--aend = *--b;
c@427: #endif
c@427: 
c@427: 	else {
c@427: 		bend = b + lb;
c@427: #ifndef NO_OVERWRITE
c@427: 		if (a <= b || a >= bend)
c@427: #endif
c@427: 			while(b < bend)
c@427: 				*a++ = *b++;
c@427: #ifndef NO_OVERWRITE
c@427: 		else {
c@427: 			a += lb;
c@427: 			while(b < bend)
c@427: 				*--a = *--bend;
c@427: 			a += lb;
c@427: 			}
c@427: #endif
c@427: 		while(a < aend)
c@427: 			*a++ = ' ';
c@427: 		}
c@427: 	}
c@427: #ifdef __cplusplus
c@427: }
c@427: #endif