guys i want to read the text from my file and assign every character to a single element of the array
char A[1000];
FILE * fpointer;
fpointer=fopen("text.txt","r");
i=0;
while(!feof(fpointer))
{
fscanf(fpointer,"%c",&A[i]);
i=i+1;
}
fclose(fpointer);
for (i=0;i<100;i++)
{
printf("%c",A[i]);
}
return 0;
but the problem is that the output is some weird symbols instead of the file's text which is "This is just a test".Why is that happening ?
Possible reasons include:
fopen
failed to open the specified file. Fix by checking the return value of fopen
.i
.Corrected code snippet:
int i = 0, j = 0;
char A[1000];
FILE* fpointer;
fpointer = fopen("text.txt", "r");
if(!fpointer)
{
fputs("fopen failed! Exiting...\n", stderr);
exit(-1); /* Requires `stdlib.h` */
}
while(fscanf(fpointer, "%c", &A[i]) != EOF)
{
i = i + 1;
}
fclose(fpointer);
for (j = 0; j < i; j++){
printf("A[%d] = '%c'\n", j, A[j]);
}
To expand on the points by @Cool Guy :
In case your files do not contain the null character , you can avoid using another variable to store the number of characters read. If you null terminate your read in characters, you can just print them directly as a string.
You have to make sure that A can hold enough characters. If you expect at most 1000 characters, make sure that A has a size of 1001 bytes to contain the terminating NUL character.
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
char A[1001] = { 0 }; /* init to NUL, expect at most 1000 chars */
int i;
FILE *fpointer;
fpointer=fopen("text.txt","r");
if(!fpointer) {
perror("Error opening file"); /* print error message */
exit(-1); /* Requires `stdlib.h` */
}
/* read all characters from fpointer into A */
for (i=0; fscanf(fpointer, "%c", &A[i]) != EOF; i++);
fclose(fpointer);
printf("%s\n",A); /* print all characters as a string */
/* alternatively, loop until NUL found */
for (i=0; A[i]; i++)
printf("%c", A[i]);
printf("\n");
return 0;
}
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