string conversion

[rshtykh]

I want to convert from one string to another and return it as a pointer *out_s? or as a string "res" will be ok as well. But my code doesn't work...
For example, copying res[n] = (char *)&out; doesn't work.
What is wrong with my code?(I am new to C, so please bear with me)
int readAndConvert(char *in_s, char *out_s, int len){
int n=0;
int *out, *in;
char *res = malloc(sizeof(char)*len);
for(n=0; n<len; n++){
in = (int*)(in_s[n]);
out = (int*)(out_s[n]);
convertChar(&in, &out,1);
res[n] = (char *)&out;
}
res;
return 0;
}

int convertChar(int *in_char, int *out_char, int enc){
uchar *table;
table = ki;
if(*in_char & 0x80){
*out_char = table[*in_char & 0x7F];
}
else{
*out_char = *in_char;
}
return 0;
}

 

[rshtykh]

By the way, I use it in main() like this:

uchar *test = &quot;Test&quot;;
int size = sizeof(test);
uchar *outp = calloc(size, sizeof(uchar));

if(outp!=NULL){
readAndConvert(&test, &outp, 4, 0);
printf(&quot;%s\n&quot;, outp);
// free(outp);
}
and can't free memory by doing free(outp); Seems memory block is gone somewhere because I can't access it. I get error in ASSERT in DBHEAP.c:
/*
* If this ASSERT fails, a bad pointer has been passed in. It may be
* totally bogus, or it may have been allocated from another heap.
* The pointer MUST come from the 'local' heap.
*/
_ASSERTE(_CrtIsValidHeapPointer(pUserData));

 

[Salem]

OK, here's a bit of a tidy up

#include <stdio.h>
#include <stdlib.h>
typedef unsigned char uchar;

int convertChar(char *in_char, char *out_char, int enc)
{
    uchar *table;
    table = ki;                 // I assume this is something you have
    if (*in_char & 0x80) {
        *out_char = table[*in_char & 0x7F];
    } else {
        *out_char = *in_char;
    }
    return 0;
}

int readAndConvert(char *in_s, char *out_s, int len)
{
    int n = 0;
    for (n = 0; n < len; n++) {
        convertChar(&in_s[n], &out_s[n], 1);
    }
    return 0;
}


int main()
{
    char *test = &quot;Testing 1 2 3&quot;;
    int size = strlen(test);    // sizeof(test) is the size of the pointer, not the length of the string
    char *outp = calloc(size + 1, sizeof(char));

    if (outp != NULL) {
        readAndConvert(test, outp, size);
        outp[size] = '\0';      // make it a proper string
        printf(&quot;%s\n&quot;, outp);
        free(outp);
    }
    return 0;
}

 

[rshtykh]

Thank you a lot!