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Full Discussion: Make sure strtok_r() function
Top Forums Programming Make sure strtok_r() function Post 302883868 by yifangt on Thursday 16th of January 2014 12:16:53 PM
Old 01-16-2014
Make sure strtok_r() function
Hello,
I was trying to understand more on strtok_r() function with following code:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* *From http://www.gsp.com/cgi-bin/man.cgi?section=3&topic=strtok_r
 A FreeBSD man pages  * */

int main()
{
    char string1[80];
    char *sep = "\\/:;=-";               /*Delimiters*/
    char *word, *tmp1;                   /*For the loop, *word is the return value, tmp1 is the temporary holder of the rest*/

    strcpy(string1, "This;is.a:test:of=the/string\\tokenizer-function.");

    while( (word=strtok_r(string1, sep, &tmp1)) != NULL) {   
        printf("So far we're at %s\n", word);
        string1 = tmp1;                             //Want move string1 to the next token. Error!!!
    }
    return 0;
}

The problem is with the loop at line: string1 = tmp1 where I want move the pointer to the next token
Code:
error: incompatible types when assigning to type ‘char[80]’ from type ‘char *’

Explanation and correction is greatly appreciated.
 

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LEARN ABOUT SUNOS

ssastringtochar

SSAStringCpy(3SNMP)					      SNMP Library Functions					       SSAStringCpy(3SNMP)

NAME

       SSAStringCpy, SSAStringInit, SSAStringToChar, SSAStringZero - Sun Solstice Enterprise Agent string helper functions

SYNOPSIS

       cc [ flag ... ] file ... -lssasnmp [ library .. ]
       #include <impl.h>

       void *SSAStringZero(String *string);

       int SSAStringInit(String *string, uchar_t *chars, int len, char *error_label);

       int SSAStringCpy(String *string1, String *string2, char *error_label);

       char *SSAStringToChar(String string);

DESCRIPTION

       The  SSAStringCpy()  function  makes  a deep copy of string2 to string1. This function assumes that string1 has been processed by the SSAS-
       tringZero() function. Memory is allocated inside the string1 and the contents of string2, not just the pointer, is copied to  the  string1.
       If an error is encountered,  an error message is stored in the error_label buffer.

       The  SSAStringInit() function copies the char array from chars to the string  instance with the specified length len. This function assumes
       that the string instance has been processed by the SSAStringZero() function or no memory is allocated inside the  string  instance.  If	an
       error is encountered,  an error message is stored in the error_label buffer.

       The SSAStringToChar() function returns a temporary char array buffer for printing purposes.

       The SSAStringZero() function frees the memory inside of the String instance,  but not the string object itself.

RETURN VALUES

       The  SSAStringInit() and  SSAStringCpy() functions return 0 if successful and -1 if error.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

SunOS 5.10							    17 Dec 1996 					       SSAStringCpy(3SNMP)
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