Problem with cast

This is a discussion on Problem with cast within the C Programming forums, part of the General Programming Boards category; Code: #include <stdio.h> #include <stdlib.h> #include <assert.h> FILE *ifp; int *array1; int length; static int* ReadData( const char *ifp, *length ...

  1. #1
    Registered User
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    Apr 2008
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    2

    Problem with cast

    Code:
    #include <stdio.h>
    #include <stdlib.h>
    #include <assert.h>
    
    FILE *ifp;
    int *array1;
    int length;
    static int*
    ReadData( const char *ifp, *length );
    FILE *ofp;
    char outputfile[100];
    int main( int argc, const char *const *argv ) {
            /* Get filename from command line. */
            if( !(ifp = fopen( argv[1], "r") ) ) {
                    printf("Can't open the data file %s \n", argv[1]);
                    exit (1);
            }
            array1 = ReadData( *ifp, &length );
            if( fclose(ifp) ) {
                    printf("File close error.\n");
            }
            return 0;
    }
    static int*
    ReadData( const char *ifp, *length ) {
            int size;
            int ch;
            int prev;
            int i;
            prev = '\n';
            *length = 0;
            size = 1;
            array1 = malloc(sizeof(*array1) * size);
            if( array1 == 0 ) return 0;
            while( fscanf( ifp, "%d", &i ) != EOF ) {
                    while( *length >= size - 1 ) {
                            size *= 2;
                            array1 = realloc(array1, sizeof(*array1) *size);
                            if( array1 == 0 ) return 0;
                            }
    
                    array1[*length] = i;
                    (*length)++;
            }
            printf("The number of items is %d \n", length);
            return array1;
    }
    I get the following errors I think it had to do with length.
    Code:
    :9: parse error before `*'
    :25: parse error before `*'
    : In function `ReadData':
    :31: invalid type argument of `unary *'
    :36: invalid type argument of `unary *'
    :42: invalid type argument of `unary *'
    :43: invalid type argument of `unary *'
    Last edited by bumbleb33; 04-19-2008 at 04:09 AM.

  2. #2
    and the hat of wrongness Salem's Avatar
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    ReadData( const char *ifp, <insert a type here> *length );
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

  3. #3
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    What about the others?

  4. #4
    and the hat of wrongness Salem's Avatar
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    What about them?
    That one problem fixed results in some completely different problems.

    Think about them for a while, try and fix them, then post back if you're still stuck.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

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