从在C文件中读取逗号分隔的数字 [英] Read comma separated numbers from a file in C
问题描述
试图读取逗号分隔的数字文件时,我有一个问题,我想有一个创建整数数组(不知道有多少参数数组有先)在这样的文件中的函数:
1,0,3,4,5,2
3,4,2,7,4,10
1,3,0,0,1,2
和等。我要的结果是一样的东西。
INT v [] = {1,0,3,4,5,2}
为文件中的每一行(很明显,在每一行中的值),所以我可以将此阵列添加到基质。我试着用的fscanf,但我似乎无法使其停止在每一行的末尾。我也试过与fgets,strtok的,和其他许多建议,我在网上找到的,但我不知道该怎么办了!
我在32位机使用Eclipse靛蓝。
的#include<&stdio.h中GT;
#包括LT&;&stdlib.h中GT;诠释主(){
FILE * FP;
int数据,行,列,C,计数,INC;
为int *阵列,容量= 10;
焦炭CH;
阵列=(INT *)malloc的(的sizeof(int)的*容量);
FP = FOPEN(data.csv,R);
排= COL = C =计数= 0;
而(EOF =(INC =的fscanf(FP,%D%C,&安培;!数据,和放大器; CH))及和放大器; INC == 2){
++℃; //列数
如果(容量==计数)
阵=为(int *)的realloc(阵列的sizeof(int)的*(容量* = 2));
数组[统计++] =数据;
如果(CH =='\\ n'){
++排;
如果(COL == 0){
COL = C;
}否则如果(COL!= C){
fprintf中(标准错误,在%d个\\ n个不同的列行的格式错误,行);
转到退出;
}
C = 0;
}否则如果(CH!=','){
fprintf中(标准错误,在%d个\\ n行的不同的分隔符(%C)的格式错误,CH,行);
转到退出;
}
}
{//检查打印
INT I,J;
// INT(*矩阵)[COL] =阵列;
对于(i = 0; I<排; ++ I){
为(J = 0; J<西++ j)条
的printf(%d个,数组[我* COL + J]); //矩阵[I] [J]。
的printf(\\ n);
}
}
出口:
FCLOSE(FP);
免费(数组);
返回0;
}
I have a problem when trying to read a file with comma separated numbers, I want to have a function that creates arrays of integers (not knowing how many parameters the array has at first) in a file like this:
1,0,3,4,5,2
3,4,2,7,4,10
1,3,0,0,1,2
and so on. The result I want is something like
int v[]={1,0,3,4,5,2}
for every line in the file (obviously with the values in each line) so I can add this array to a matrix. I tried using fscanf, but I can't seem to make it stop at the end of each line. I also tried fgets, strtok, and many other suggestions I found on the Internet, but I don't know how to do it!
I'm using Eclipse Indigo in a 32-bit machine.
#include <stdio.h>
#include <stdlib.h>
int main(){
FILE *fp;
int data,row,col,c,count,inc;
int *array, capacity=10;
char ch;
array=(int*)malloc(sizeof(int)*capacity);
fp=fopen("data.csv","r");
row=col=c=count=0;
while(EOF!=(inc=fscanf(fp,"%d%c", &data, &ch)) && inc == 2){
++c;//COLUMN count
if(capacity==count)
array=(int*)realloc(array, sizeof(int)*(capacity*=2));
array[count++] = data;
if(ch == '\n'){
++row;
if(col == 0){
col = c;
} else if(col != c){
fprintf(stderr, "format error of different Column of Row at %d\n", row);
goto exit;
}
c = 0;
} else if(ch != ','){
fprintf(stderr, "format error of different separator(%c) of Row at %d \n", ch, row);
goto exit;
}
}
{ //check print
int i,j;
// int (*matrix)[col]=array;
for(i=0;i<row;++i){
for(j=0;j<col;++j)
printf("%d ", array[i*col + j]);//matrix[i][j]
printf("\n");
}
}
exit:
fclose(fp);
free(array);
return 0;
}
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