[問題][急] 指標問題,麻煩幫忙
sgesvx_(char *fact, char *trans, integer *n,......real *rcond,)
小弟我要呼叫一個Subroutine來用,名稱是:sgesvx_(),
但是sgesvx_("real *rcond,"這一項一直搞不定),
source file的說明如下:
http://src.wtgstudio.com/?hM3FN4
譬如說, integer *n ,這是要輸入的,假設我想輸入3,我的作法是:
integer *n, n_val=3;
n = &n_val;
這樣應該沒問題
我的問題是, real *rcond ,這是程式計算後會output的結果,
請問我應該如何宣告呢?
麻煩幫個忙,謝謝
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