[問題] 如何解決副程式的值傳不回來問題

[aada (aada)]

大家好,

請問一下關於副程式的問題,

我寫了一個取最大值的副程式但最後回傳不回來,

請大大幫我看一下問題在哪

謝謝

#include <stdio.h>
#include <stdlib.h>

#define NNx2 5
#define NNy2 5

// ___________ Max ___________ //
void maxmax( double *I1, double temp2 )
{
        for ( int i = 0; i < NNx2*NNx2; i++ )
        {
                if ( I1[i] > temp2 )
                {
                        temp2 = I1[i];
                        printf("maxmax temp =%f \n", temp2);
                }
        }
}

int main( void )
{

        char filename_I1[] = "a.txt";
        double *I1,temp2 = 0;
        FILE *fp1;
        I1 = (double*) malloc( (NNx2)*(NNy2)*sizeof(double) );

        fp1 = fopen( filename_I1, "r" );
        for (int i = 0; i < NNx2*NNy2; i++)     {       fscanf( fp1,"%lf", &I1[ i ] );  }
        fclose( fp1 );
        printf("\n");

        maxmax( I1, temp2 );
        printf("maxima=%f\n", temp2);

        system("pause");
        return 0;
}

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 59.112.230.1
→ stupid0319:void maxmax( double *I1, double* temp2 )
→ stupid0319:if ( I1[i] > *temp2 ){         *temp2 = I1[i];
→ stupid0319:maxmax( I1, &temp2 );
→ aada:感謝s大的協助