https://github.com/thchang/csvtomatrix

Import a matrix from a CSV into a C array, and store in row-major ordering.
https://github.com/thchang/csvtomatrix

c csv

Last synced: 12 days ago
JSON representation

Import a matrix from a CSV into a C array, and store in row-major ordering.

• Host: GitHub
• URL: https://github.com/thchang/csvtomatrix
• Owner: thchang
• Created: 2020-12-04T01:18:27.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2020-12-04T02:17:51.000Z (about 4 years ago)
• Last Synced: 2024-10-09T12:58:55.460Z (4 months ago)
• Topics: c, csv
• Language: C
• Homepage:
• Size: 5.86 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# CSVtoMatrix

One day I needed to load a matrix from a CSV file into a C array.

I looked around the internet to borrow someone else's solution, but

I couldn't easily find an existing solution for this simple and

common task, which I think is surprising. (I'm sure someone has

posted about this before, I just couldn't easily find it). So I 

wrote my own solution. Maybe the next guy/gal will find this and

save an hour :)

Note, there is no support for white spaces, this is just a simple demo...

```

/*

 * Function: readCSV

 * -----------------

 * read a nXm matrix from a CSV file into a flat array in row-major ordering

 *

 * n: the number of rows

 *

 * m: the number of cols

 *

 * fp: pointer to FILE object for the CSV file containing (one row per line)

 *

 * mat: pointer to a block of memory of size sizeof(double)*n*m, into which

 *      the matrix will be loaded on output

 */

void readCSV(int n, int m, FILE *fp, double *mat)

```

## Contents

There are 4 files:

 * `README.md` is this file

 * `readCSV.c` is the source file

 * `matrix.csv` is a sample matrix

 * `Makefile` is a sample GNU makefile