Char invalid conversion from 'char*' to 'char' [-fpermissive] [closed] - c

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I have problems with invalid conversion from 'char*' to 'char' [-fpermissive].
In here, I am shifting data one digit.
char text[]="5052.4318" ,temp;
When I write like this, ok, it is working but I need to read data from array[3].
How can I handle this problem?
#include <iostream>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main ()
{
char *array[3];
array[3]="5052.4318";
char text[]={array[3]} ,temp;
int text_len = strlen (text),i;
for (i =0; i <=text_len - 1; i++)
{
if (text[i] == '.')
{
temp = text[i-1];
text[i-1] = text[i];
text[i] = temp;
}
}
printf ("%s\n", text);
return 0;
}
Working
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main (void) {
char *array[1] = {"5052.4318"};
size_t text_len = strlen(array[0]);
char text[text_len + 1], temp;
int i;
strcpy(text, array[0]);
for (i=0; i <=text_len - 1; i++){
if (text[i] == '.') {
temp = text[i-1];
text[i-1] = text[i];
text[i] = temp;
}
}
printf ("%s\n", text);
}
In here I am trying read GPS data and this data is GPRMC so firstly i need to parse these data after have to convert to google maps format(latitude need longitude).
$GPRMC,093612.000,A,5052.43525,N,00440.11204,E,0.0,0.0,130917,,,A*6C
5052.43525 is latitude value. Firstly I need to shift data like this 50.5243525.Again shift>>After divide number of 60=> 52.43525/60=0.87392083.
So result should be 50.87392083. Another problem I shouldnt use atof command for string to float value. Because I am using Coocox and is not working in Debug.Maybe I need to use null terminal. I am sharing this code which progressing I am doing.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main ()
{
//char buf[]
="$GPRMC,121212,A,4807.038,N,01131.000,E,022.4,084.4,030611,003.1,W*6A";
char T[100];
sprintf(T,
"%s","$GPRMC,093612.000,A,5052.43525,N,00440.11204,E,0.0,0.0,130917,,,A*6C");
printf(T);
char *buf[]={T};
int i = 0;
char *p = strtok (*buf, ",");
char *array[12];
while (p !=0)
{
array[i++] = p;
p = strtok (0, ",");
}
for (i = 0; i < 11; ++i) {
array[i];
printf("%s\n",array[i]);
}
//char *array[3] = {"5052.4318"};
size_t text_len = strlen(array[3]);
char text[text_len +1], temp;
int i1;
strcpy(text, array[3]);
for (i1 =0; i1 <=text_len - 1; i1++)
{
if (text[i1] == '.')
{
temp = text[i1-1];
text[i1-1] = text[i1];
text[i1] = temp;
}
}
for (i1 =0; i1 <=text_len - 1; i1++)
{
if (text[i1] == '.')
{
temp = text[i1-1];
text[i1-1] = text[i1];
text[i1] = temp;
}
}
char *buf1[]={text};
int i3 = 0;
char *p1 = strtok (*buf1, ".");
char *array1[2];
while (p1 !=0)
{
array1[i3++] = p1;
p1 = strtok (0, ".");
}
for (i3 = 0; i3 < 2; ++i3) {
array1[i3];
} double d;
float m;
int k=0;
d= (atof(array1[1])/6000);
char s[1]= {d};
m=(atof(array1[0]));
printf("%f\n",m);
printf("%lf\n",d);
return 0;
}
Result should be 50.87392083.
I havent completed.
Thanks

Answer 1

I'm not completely sure what you are trying to achieve but there are some problems with the first part of your code. Your initialization lines are not really correct.
I think that you are trying to "divide by 10" your string. Keeping your algorithm, I've fixed some of the issues to have it compiled.
// #include <iostream> // This is C not C++. Also you include stdio.h...
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main ()
{
char array[] = "5052.4318"; // This initialization
// one of your errors
char * text = array + 3; // I don't know why you are pointing
// fourth element of the array, but you may do
// in this way
// Let's say I prefer to start from the starting of
// the array
text = array;
printf ("%s\n", text);
int text_len = strlen(text);
for (int i = 1; i <= text_len - 1; i++) { // You will have some problem
// if you start from 0...
if (text[i] == '.') {
char temp; // temp is used only here, so let's define it in the
// only scope that needs it.
temp = text[i - 1]; // This -1 is the reason why you may start
// the for from 1, instead of 0.
text[i - 1] = text[i];
text[i] = temp;
}
}
printf ("%s\n", text);
return 0;
}
It prints out:
5052.4318
505.24318
Is that what you want to achieve?
The for starts from 1 to handle strings like ".1234".
Also: -fpermissive is a flag that controls the "dialect" of the C++ compiler. It is not something that you see when you are compiling in C. Since you included iostream, your compiler switched automatically to a C++ compiler. You must be really careful in this things.

Answer 2

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main ()
{
char text[30]="5052.4318",temp;
int text_len = strlen (text),i;
//printf("%s\n%d\n",text,text_len);
for (i =0; i <=text_len - 1; i++)
{
if (text[i] == '.')
{
temp = text[i-1];
text[i-1] = text[i];
text[i] = temp;
}
}
printf ("%s\n", text);
return 0;
}
You don't need to use an extra character array to achieve your desired result.