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#1
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Reading files using Fgets, strange errors on compile.
Hi all,
I am trying to write a program to open a file, read the file line by line, and display the contents after the = sign on screen. I am having problems, however, here is the code I am using: #include <stdio.h> #include <strings.h> main() { char word[50]; char *pntr /* Get pointer */ FILE *input_file_pointer; /* Open file */ input_file_pointer = fopen("clist.cfg","r"); /* if file is not present then stop */ if (input_file_pointer == NULL) { printf("Fail\n"); return 0; } else /* read in line by line and print on screen what is after the = sign */ while (fgets(word, 50, input_file_pointer) != EOF) { pntr = strchr(word, '='); pntr++; printf("%s", pntr); } fclose(input_file_pointer); } when I compile the program I get these errors: syntax error before 'FILE' new.c:14 'input_file_pointer' undeclared (first use in this function) new.c:25 warning:comparison between pointer and integer new.c:27 'pntr' undeclared (first use in this function) Now I can open the file, and close the file. Somehow adding the while loop with fgets messes things up a little, its prolly quite easy but its starting to bug the hell outta me. Any help is greatly appreciated guys. |
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#2
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> char *pntr
You need to add a semi-colon to the end of that line. The clue is here: > syntax error before 'FILE' > #include <strings.h> shouldn't this be <string.h>? Last edited by BigBadBob : June 22nd, 2003 at 07:42 AM. |
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#3
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Ok thanks for that, those were silly little things as I thought.
Reword but still get some problems when compiling, these are two warnings. Anyone care to explain: new.c new.c(25) : warning C4047: '!=' : 'char *' differs in levels of indirection from 'const int ' new.c(32) : warning C4715: 'main' : not all control paths return a value oh and I get an error when running this. Think its something to do with when I reach the end of the file. using visual studio cl compiler this time for quickness, last time I used cc. |
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