fgets write -1.000000e+00 in output file

Question

Mohamed AKI Ahmed 2022-3-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1676949-fgets-write-1-000000e-00-in-output-file

评论： Mohamed AKI Ahmed 2022-5-30

Hello,

I have a code that first opens a file (using fopen), then gets everyline from the file, however, when encountering the end-of-file, and the value is -1, it prints this value in the file generated. Thus, when comparing the original file with the one generated, I have the value -1.000000e+00 written at the end. I want to exclude this value, any suggestions?

file=fopen('poem.txt');
line_ex=fgets(file);
getit{1}=filepath %filepath was indicated before
getit{end+1}=line_ex
while ischar(line_ex)
    line_ex=fgets{file};
    getit{end+1}=line_ex
end
fclose(file);
    
    
    

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Stephen23 2022-3-21

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1676949-fgets-write-1-000000e-00-in-output-file#answer_923464

在 MATLAB Online 中打开

while ~feof(file)

3 个评论
显示 1更早的评论隐藏 1更早的评论

Stephen23 2022-3-22

在 MATLAB Online 中打开

old.txt

It works for me:

fid = fopen('old.txt','rt');
fnd = fopen('new.txt','wt');
while ~feof(fid)
    str = fgetl(fid);
    fprintf(fnd,'%s\n',str);
end
fclose(fid);
fclose(fnd);
type new.txt
AA
BB
CC