[問題] 出現 cause 'memory not mapped'

看板C_and_CPP (C/C++)作者JimCroce (GO )時間13年前 (2013/03/16 11:47)推噓0(0推 0噓 2→)

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因為我拿我在Windows上的c code(可執行) 丟到 Linux 上執行不動然後用 valgrind 檢查過, 發現似乎沒有把記憶體釋放乾淨?! HEAP SUMMARY: in use at exit: 39,073 bytes in 656 blocks total heap usage: 734 allocs, 78 frees, 52,671 bytes allocated 最後valgrind 說出現有一個error(沒說哪一行) 但我目前沒有找到很明顯的錯誤. 下面是我的部分code, 請大家幫幫忙, 找了好久看不到感謝 ----- #include <stdio.h> #include <stdlib.h> #include <math.h> void coord8(double *X, double *XX,double *y, double *lambda, double *eps, int *ncolX, int *n, double *beta_hat, double *err,int *iter) { int i,j,k,v; double nRow = *n; double nCol = *ncolX; double lam = *lambda; double *x_squared, *xy, *partial_residual_sum, *beta_temp, b, temp, tempxy,temp_sum, t1, t0; double **x = (double **)calloc(nRow ,sizeof(double*)); double **xx = (double **)calloc(nCol,sizeof(double*)); for(i = 0; i < nRow; ++i) x[i] = (double *)calloc(nCol, sizeof(double)); for(i = 0; i < nCol; ++i) xx[i] = (double *)calloc(nCol, sizeof(double)); x_squared =(double*) calloc(nCol,sizeof(double)); partial_residual_sum =(double*) calloc(nCol,sizeof(double)); beta_temp =(double*) calloc(nCol,sizeof(double)); xy =(double*) calloc(nCol,sizeof(double)); 中間是一些代數運算 for(i = 0; i < nRow; i++) free(x[i]); free(x); for(i = 0; i < nCol; i++) free(xx[i]); free(xx); free(x_squared); free(xy); free(partial_residual_sum); free(beta_temp); } -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.113.114.59 ※ 編輯: JimCroce 來自: 140.113.114.59 (03/16 11:48)