39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
#include "fileGestion.h"
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/**
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* @brief function that delete nRow lign in the beginning of the file rawData.csv . This function is necessary to not deal with the same ligns over and over
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*
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* @param nRow number of lign in the beginning of the file rawData.csv that has to be delete
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*/
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void clearRawData(int nRow){
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char buffer[256];
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FILE *f = fopen("newFile.csv","w+");
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FILE *g = fopen("rawData.csv","r");
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for(int i = 0; i < nRow; i++){ //first the program read the first nRow ligns of the csv file but do nothing
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fgets(buffer , sizeof buffer , g);
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}
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while(1){ //then, till the end of the csv file it copy the lign to a new csv : newFile.csv
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if(!fgets(buffer,sizeof buffer , g)) break;
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fprintf(f,"%s",buffer);
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}
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remove("rawData.csv"); rename("newFile.csv", "rawData.csv"); //finally we remove the original file and rename the new one to replace rawData.csv
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fclose(f); fclose(g);
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}
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/**
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* @brief use to write one lign in the file "fileName"
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*
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* @param array array that contaign all the values to write in the file
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* @param nCol size of the array (correspond to the number of captor used)
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*/
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void appendDataInFile(char* fileName , double array[], int nCol){
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FILE *f = fopen(fileName,"a+");
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for(int i = 0 ; i < nCol ; i++){
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if( i < nCol-1){
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fprintf(f, "%f , ", array[i]);
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} else {
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fprintf(f, "%f\n", array[i]);
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}
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}
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fclose(f);
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} |