feat: adjust write-location-file

write-location-file/location.c

@@ -0,0 +1,16 @@
+#include "location.h"
+
+struct location getLocation(char lat[11], char lon[10]){
+  struct location lctn;
+  int i,j;
+
+  for(i=0; i<11; i++){
+    lctn.lat[i] = lat[i];
+  }
+
+  for(j=0; j<10; j++){
+    lctn.lon[j] = lon[j];
+  }
+
+  return lctn;
+}

write-location-file/location.h

@@ -0,0 +1,16 @@
+/*It is a tradition to use CPP tricks to avoid parsing the same header file more than once*/
+
+#ifndef LOCATION_H
+# define LOCATION_H
+
+/*use struct statement to define structure*/
+struct location {
+  /*latitide like +052.26594*/
+  char lat[11];
+  /*longiture like +10.52673*/
+  char lon[10];
+};
+
+struct location getLocation(char lat[11], char lon[10]);
+
+#endif /* LOCATION_H */

write-location-file/readme.md

@@ -4,4 +4,8 @@
 
 ```
 gcc -Wall write-location-file-test.c write-location-file.c && ./a.out
+```
+
+```
+gcc -Wall write-location-file-test.c write-location-file.c location.c && ./a.ou
 ```

write-location-file/write-location-file-test.c

@@ -13,15 +13,16 @@
 char lat[11]="52.26594";
 char lon[10]="10.52673";
 
-static void test_write_location_file(){
-    FILE* read;
-    char buf[17];
+static void test_write_stuct_location_file(){
+  FILE* read;
+  char buf[17];
 
-    /*create file*/
-    write_location_file(lat, lon);
+  /*create file*/
+  struct location lctnGet=getLocation(lat, lon);
+  write_struct_location_file(&lctnGet);
 
     /*read file*/
-    read = fopen("location-file.csv", "a+");
+    read = fopen("struct-location-file.csv", "a+");
 
     if (NULL == read) {
       /*failed to open file and associate stream*/
@@ -31,17 +32,39 @@ static void test_write_location_file(){
 
     //printf("content of this file are \n");
     fscanf(read, "%17s", buf);
-    printf("test_write_location_file() buf: %17s\n", buf);
+    printf("test_write_struct_location_file() buf: %17s\n", buf);
 
     fclose(read);
 
     char result[18] = "52.26594,10.52673";
-    printf("test_write_location_file() result: %17s\n", result);
+    printf("test_write_struct_location_file() result: %17s\n", result);
 
-    assert(strcmp(buf, result)==0 && "test_write_location_file()");
-    //assert(write_location_file("52.26594", "10.52673")==0 && "test_write_location_file()");
+    assert(strcmp(buf, result)==0 && "test_write_struct_location_file()");
+}
+
+static void test_write_location_file(){
+  FILE* read;
+  char buf[17];
+  /*create file*/
+  write_location_file(lat, lon);
+  /*read file*/
+  read = fopen("location-file.csv", "a+");
+  if (NULL == read) {
+    /*failed to open file and associate stream*/
+    fprintf(stderr, "Value of errno: %d\n", errno);
+    fprintf(stderr, "Error opening file: %s\n", strerror(errno));
+  }
+  //printf("content of this file are \n");
+  fscanf(read, "%17s", buf);
+  printf("test_write_location_file() buf: %17s\n", buf);
+  fclose(read);
+  char result[18] = "52.26594,10.52673";
+  printf("test_write_location_file() result: %17s\n", result);
+  assert(strcmp(buf, result)==0 && "test_write_location_file()");
+  //assert(write_location_file("52.26594", "10.52673")==0 && "test_write_location_file()");
 }
 
 int main(){
   test_write_location_file();
+  test_write_stuct_location_file();
 }

write-location-file/write-location-file.c

@@ -6,6 +6,30 @@
 #include <errno.h>
 #include <string.h>
 
+int write_struct_location_file(struct location *lctn){
+  FILE *fp;
+
+  printf("\nwrite-struct-location-file() Start...\n");
+
+  printf("\nwrite-struct-location-file() lat: %s, lon: %s\n", lctn->lat, lctn->lon);
+
+  fp = fopen("struct-location-file.csv", "w");
+  if (fp==NULL)
+  {
+    /*failed to open file and associate stream*/
+    fprintf(stderr, "Value of errno: %d\n", errno);
+    fprintf(stderr, "Error opening file: %s\n", strerror(errno));
+  }
+
+  /*latitude e.g. 52.26594*/
+  /*longitude e.g. 10.52673*/
+  fprintf(fp, "%s,%s\n", lctn->lat, lctn->lon);
+  fclose(fp);
+
+  printf("\nwrite-struct-location-file() Done!\n");
+  return 0;
+}
+
 int write_location_file(char *lat, char *lon){
   FILE *fp;
 

write-location-file/write-location-file.h

@@ -3,6 +3,10 @@
 #ifndef WRITE_LOCATION_FILE_H
 # define WRITE_LOCATION_FILE_H
 
+#include "location.h"
+
 int write_location_file(char *lat, char *lon);
 
+int write_struct_location_file(struct location *lctn);
+
 #endif /* WRITE_LOCATION_FILE_H */