I am writing a C program that produces a large output file. To increase readability, I would like to collect certain kinds of output at certain points in the file rather ... |
If I had an array of integers I wanted to output to a text file..
void output()
{
for (i=0; i<10; i++)
...
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I have written a C program to get all the possible combinations of a string. For example, for abc, it will print abc, bca, acb etc. I want to get this ... |
I am a complete noob to c. I have downloaded a code from internet. It generates all possible combination of characters. I want to transfer this output to a text file. ... |
I'm writing a brute-force program for enumerating a certain kind of integer sequence (not important what this sequence actually is).
In order to get my results, I create a file and I'd ... |
I'm just trying my hand in bash, so I wrote a simple program in C to count the number of characters in a file.
This is my C program:
#include <stdio.h>
int main()
{
...
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I'll make an edge detection with Sobel operator if I managed to create a double array that keeps the pixel values of 8bit Gray-scale BMP file. After execution of program, it ... |
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Coco Agozzino 1. Prompt and read in the number of sample points. Read and store this number as an integer. 2. Prompt and read in the circle radius. Read and store this number as a double precision floating point number. 3. Prompt and read in the output file name. Read and store the file name as a C++ string. Include the ... |
Your code is only opening one output file. If you want to write to multiple files you need to have multiple output streams (one for each file), and then write the data to each one. I suppose you can do it with one output stream just open file1, write data, close stream, open file2, write data, close, etc... |
Hello, I have recently started programming again, and right now everything I do is "printf" to the screen. If I want everything to go to a file, say for 1 or 10 million numbers below, could you please tell me how? I have done fread and fwrite OK, but I need more help. Thank you. Jim Devaney /* Copyright (c) 1990, ... |
Im a degree student currently doing my project I had done some part of my project in colege and stored that in my pen driv wen i came home and copied those files and compiled it....it showed a FATAL ERROR i.e UNABLE TO CREATE OUTPUT FILE ...........'C:\TC\OUTPUT\filename.obj' dont know how to solve this one......... |
You want to create an entirely new file (ie, copy the original into a new location and leave the first untouched)? There are two ways to do this. The first is the ugly, QAD way to use 'system()' and the OS-dependent commands to do that (Linux would be 'cp /file/path/1 /file/path2', I'm not sure what it would be in DOS). The ... |
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I'm still new to C programming and i wanted to try and use files for input and output back to files. My friend told me to try http://dwite.ca/questions/show_me_the_money.html to test out my skills. I've been stumped on it at first because it requires each line to be separated so I searched a bit and found that FILE* would work for me. ... |
here is the code. i am using a c compiler provided by the Code Blocks program. Code: tensecomp = strncmp (past, tense, 2); verbcount = count; strncpy (filename2, username, length); strcat (filename2, "pasttenseverbs.txt"); strncpy (filename5, username, length); strcat (filename5, "pronounp.txt"); if (tensecomp ==0){ outfile = fopen (filename5, "a"); for (counter =0; answerfuture != 'n'; counter=counter +1){ printf ("\n\nFor which pronoun did ... |
this is just the snippet. the inappropriate here means: if the file contains values: name age salary abby 23 27000 ashi 22 12345 then the output i am getting is: name age salary abby 23 27000.000000 ashi,*, 4320 1236457584382635.000000 m posting my entire code: Code: #include #include struct _emp { char name[40]; int age; float salary; }; struct _emp emp; void ... |
19. File output cboard.cprogramming.com |
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Hello, I have a question regarding file output using . First, let me give a bit of background on what I am doing. I am using extensive logging in a game modification to help find crashes. I am currently logging every function call and the number of writes is around 6,000 per second. As this is meant to track the last ... |
Hi, I'm wondering if someone can help get me started on this. I sat down to do it and realized I couldn't. lol This is what I'm trying to do: I have an output file that I want to append. The tricky part is I want to scan in the last number listed in the file, add to it another number, ... |
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/*File Pointers*/ FILE *output1; //pointer 1 FILE *output2; //pointer 2 /*Variables*/ int num1 = 12; //num for file1 int num2 = 67; //num for file2 /*open files*/ output1 = fopen("c:\\ouput1.txt","w"); //You can put what output2 = fopen("c:\\output2.txt","w"); //ever the the file location /*Write nums to file1*/ fprintf(output1,"%d", num1); /*Write nums to file2*/ fprintf(output2, "%d", num2); |
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Hi all, I have aproblem with a program, and i hope someone can halp me out.... I want to put the output, wich i see on the dos console, on a txt file. I know i can do that with fputs, but i think its a very long procedure to build in the fputs line after each printf line i want ... |
Code: #include #include #include int main () { struct stuinfo { char name[30]; int ssn; char dob[11]; char curr[4]; int gradyr; }; char buf[80]; /* file buffer area */ FILE *in; /* input file stream pointer */ FILE *out; /* output file stream pointer */ struct stuinfo *s; s = malloc(sizeof(struct stuinfo)); in = fopen("d6.dat", "r"); if(in == ... |
#include #include #define MaxString 10 void Read(FILE *fpin,char *s) /* read characters in input file */ { char c; c=fgetc(fpin); while(c!=' '&&c!='\n') { *(s++)=c; c=fgetc(fpin); } *s='\0'; } float TypeChange(char*s) /* change a string into a float number */ { int i=0,j=0; float m=0; while(s[i]!='\0') { if(s[i]=='.') j=0; else { m=10*m+s[i]-'0'; j++; } i++; } if(i==j) return m; else { for(;j!=0;j--); ... |
hey guys, i am a newbie here and in programming. recently i have a problem that i have no idea to solve with the basic file input/ouput function. i was told to write a function, call plot, to plot the graph on the screen that i can solve easily. in that plot function i have a bunch of printf("xxxx") stuff; how ... |
hi, again. I have another problem, this time while writing in a file the lines of another program. a certain file .h , which will be told to open by a file .c ( first argument ), and, from that file .h , i will copy each line into another file .txt ( second argument ) if the file .h (mentioned ... |
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Hello, I am new to programming and I was wondering if someone could help me with a question? I needing to know if there is a way to write a program that will get particular lines out of a file and print the out put to another file? For example here is code that I used to get a file and ... |
Hi, I've written a program and want the output to go to file. My data is stored in a linked-list and a function is called to loop through the list and print it, using something like printf("%s\n", mylist->item1); However, I now want the user to be able to print the results to file, specifiying the filename. So the user is prompted ... |
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I have written a program in C that runs user driven queries on a postgres database via a webform. I want to add an option to export/save the output from a query to a csv file. This is something I haven't done before so I could really use some help, at least getting started. Ideally after the query is run and ... |
"America's abundance was created not by public sacrifices to "the common good," but by the productive genius of free men who pursued their own personal interests and the making of their own private fortunes. They did not starve the people to pay for America's industrialization. They gave the people better jobs, higher wages and cheaper goods with every new machine they ... |
Hi, my C code generate an output file conataining at least 600 rows of raw data. I normally import it from the Access by hand, but I hope there is a way that I can tell the output file to open the database created in Access and update or create a new table and store all the data there, which is ... |
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Opens file fine, but keyboard input is not in output.bin when program is done? Any ideas? Thanks! #include #include /*Write a data structure to a disk. */ struct line { char text[81]; int line_no; }; int main() { FILE *f_ptr; struct line aline; char go; f_ptr = fopen("a://cex032.bin", "wb"); /* Write a statement that will set the current position ... |
Wow, fast replies. Gotta love that. Ok, i'm really really new to this so, i'm not getting exactly how to use the popen() instead of system. How would I quickly change my code to use the popen() option? I'd like to be able to change my code as little as possible from it's current state so, if I can just add ... |
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"I'd suggest writing a streambuf ..." Tecnically perfect, but consider the OP starting point! writing a streambuf my be not as easy if you don't have a good knowledge of its interface and on how it is called by a stream. And -as far my experience is- there is almost no clear documentation on it (apart the streambuf description, I mean. ... |
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