/* ./src_f77/icamax.f -- translated by f2c (version 20030320).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

#include <punc/vf2c.h>

integer icamax_(integer *n, complex *cx, integer *incx)
{
    /* System generated locals */
    integer ret_val, i__1, i__2;
    real r__1, r__2;

    /* Builtin functions */
    double r_imag(complex *);

    /* Local variables */
    static integer i__, ix;
    static real smax;


/*     finds the index of element having max. absolute value. */
/*     jack dongarra, linpack, 3/11/78. */
/*     modified 3/93 to return if incx .le. 0. */
/*     modified 12/3/93, array(1) declarations changed to array(*) */


    /* Parameter adjustments */
    --cx;

    /* Function Body */
    ret_val = 0;
    if (*n < 1 || *incx <= 0) {
	return ret_val;
    }
    ret_val = 1;
    if (*n == 1) {
	return ret_val;
    }
    if (*incx == 1) {
	goto L20;
    }

/*        code for increment not equal to 1 */

    ix = 1;
    smax = (r__1 = cx[1].r, dabs(r__1)) + (r__2 = r_imag(&cx[1]), dabs(r__2));
    ix += *incx;
    i__1 = *n;
    for (i__ = 2; i__ <= i__1; ++i__) {
	i__2 = ix;
	if ((r__1 = cx[i__2].r, dabs(r__1)) + (r__2 = r_imag(&cx[ix]), dabs(
		r__2)) <= smax) {
	    goto L5;
	}
	ret_val = i__;
	i__2 = ix;
	smax = (r__1 = cx[i__2].r, dabs(r__1)) + (r__2 = r_imag(&cx[ix]), 
		dabs(r__2));
L5:
	ix += *incx;
/* L10: */
    }
    return ret_val;

/*        code for increment equal to 1 */

L20:
    smax = (r__1 = cx[1].r, dabs(r__1)) + (r__2 = r_imag(&cx[1]), dabs(r__2));
    i__1 = *n;
    for (i__ = 2; i__ <= i__1; ++i__) {
	i__2 = i__;
	if ((r__1 = cx[i__2].r, dabs(r__1)) + (r__2 = r_imag(&cx[i__]), dabs(
		r__2)) <= smax) {
	    goto L30;
	}
	ret_val = i__;
	i__2 = i__;
	smax = (r__1 = cx[i__2].r, dabs(r__1)) + (r__2 = r_imag(&cx[i__]), 
		dabs(r__2));
L30:
	;
    }
    return ret_val;
} /* icamax_ */

