how i can read data from file to computations

[J_expoler2]

ex data from file ex aa.txt
//
10.7939453125
5.7196457736
1.6390841007
1.4315398899
1.6162836208
//

i use command;
fscanf(fp,"%d.%d",&d1,&d2);
i want use data to process but data read from file are incorrect
how i programming (C++)
thank

 

[C-Man]

Check the examples of the fscanf command here:
https://www.cplusplus.com/ref/cstdio/fscanf.html

%d reads to an integer variable, probably not what what you want to do ...

Does your compiler not warn you about this??

best regards

 

[kmax]

Read in the data in a char array, then transform them to form intergers

 

[microchaos]

Hello,

Try this code snippet, it should work:

FILE *F;
double dtmp;
float ftmp;

if((F = fopen("aa.txt", "r")) == NULL)
{
//Cannot open input file
return;
};

while(!feof(F)) //while not end of file
{
fscanf(F, "%lf\n", &dtmp); //this line is for variable type "double"
//fscanf(F, "%f\n", &ftmp); //this line is for variable type "float"
};

fclose(F);

 

[valcarni]

how do you say do this
say i want to put form30.text1 (integer)
form30.text2 (string)
etc
how do you put them into a file.. and how would you take them back out.. cause i'm still a bit confused with that. Anyways it's for like a load/save thing in the game i'm making Lands of Crom.

Thanks