Thread: strcmp problems

I am comparing a char* to another char* inside a dynamically allocated array of structures. However when I try to compare the stirings I get this error:
"First-chance exception in smilest.exe: 0xC0000005: Access Violation."

Any thoughts?

here's some code:

int st_lookup(SymbolTable stable, char *p_vname) {
int index;
for (index = stable.st_size-1; index > -1; --index) {
if(strcmp(stable.p_stes[index].p_vname,p_vname)==0)
return index;
}
return -1;
}

also here are my structs:

typedef union InitialValue {
int int_val; /* integer variable initial value */
float flp_val; /* float variable initial value */
} InitialValue;

typedef struct SymbolTableEntry {
char *p_vname; /* pointer to lexeme (name) in CA */
int f_line; /* first line of appearance */
InitialValue i_value; /* variable initial value */
unsigned short status_field; /* variable record status field*/
size_t ds_offset;/* offset from the data segment beginning */
}SymbolTableEntry;

typedef struct SymbolTableDescriptor {
SymbolTableEntry *p_stes; /* pointer to array of STES */
int st_size; /* size in number of STES elements */
int st_offset; /*offset in number of STES elements */
Buffer *st_lexbuff; /* pointer to lexeme buffer descriptor */
} SymbolTable;

0xC0000005: Access Violation

This means that it's a memory error not strmp()

Make sure that you have not freed the memory that you are
trying to compare.

Post an example of where the program crashes.