How To Append A Filename Within The Program After User Definition in C I have pr

Question

How To Append A Filename Within The Program After User Definition in C

I have program that has the user entering the full path to the folder holding several datafiles.

for example So say the user enters: psfHomeDesktopHealthScoreHealthScoreDataFiles I need to change it within the program to: psfHomeDesktopHealthScoreHealthScoreDataFilesBT_1.txt

Ive tried adding the string together with one a pointer, the other is an array and with both parts being pointers.

Here is a sample of my latest attempt:

I have program that has the user entering the full path to the folder holding several datafiles.

for example So say the user enters: psfHomeDesktopHealthScoreHealthScoreDataFiles I need to change it within the program to: psfHomeDesktopHealthScoreHealthScoreDataFilesBT_1.txt

Ive tried adding the string together with one a pointer, the other is an array and with both parts being pointers.

Here is a sample of my latest attempt:

      char filepath[1000];      FILE* fp;      char BP1_ext [] = "\BP1.txt";    printf("Enter the path to the file holding the data files:");                                    fflush(stdin);                  scanf("%s", filepath);                  //////////////////////BLOOD PRESSURE//////////////////////                  if (bpSensors == 1)                  {                      filepath = (filepath + BP1_ext);                      fp = fopen(filepath, "r");                      if (fp == NULL)                                                {                          puts("ERROR OPENING FILES");                          exit(EXIT_FAILURE);                      }                                            else                      {                          while (!feof(fp))                          {                              printf("  READING BP_1.txt...");                              fgets(bp1_Line, 100, fp);                              sscanf(bp1_Line, "%s	%s	%s", bp1_Val1, bp1_Val2, bp1_Val3);                              printf("%s	%s	%s ", bp1_Val1, bp1_Val2, bp1_Val3);                          }                          fclose(fp);                                                }                                        }  

Explanation / Answer

The below given program will concatenate two strings.

#include<stdio.h>
#include<string.h>
int main(){
char filepath[1000];
printf("Enter the path to the file holding the data files:");
scanf("%s", filepath);
char BP1_ext [] = "\BP1.txt";
strcat(filepath,BP1_ext);
printf("Appended filename is :%s",filepath);
}

strcat in string.h will concatenate two strings..

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