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Top Forums Programming How to get the sizeof char pointer Post 302322207 by SamRoj on Wednesday 3rd of June 2009 06:00:36 AM
Old 06-03-2009
How to get the sizeof char pointer

The below code throws the error, since the size of x = 19 is not passed to the cstrCopy function.

using namespace std;
static void cstrCopy(char *x, const char*y);
int main ()
{
char x[19];
const string y = "UNIX FORUM";
cstrCopy(x,y.c_str());
return 0;
}
void cstrCopy(char *x, const char *y)
{
if(strlen(y) >= sizeof(x)) {
throw errorException;
}
strncpy(x, y, sizeof(x));
}


How to pass the size of char pointer to a function.?
Please help.
 

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Dt/Dts.h(file formats)													    Dt/Dts.h(file formats)

NAME
Dt/Dts.h -- data typing definitions SYNOPSIS
#include <Dt/Dts.h> DESCRIPTION
The Dt/Dts.h header declares the following structure: typedef struct _DtDtsAttribute { char *name; char *value; } DtDtsAttribute; The header declares the following as functions: DtDtsAttribute **DtDtsBufferToAttributeList(const void *buffer, const int size, const char *opt_name); char *DtDtsBufferToAttributeValue(const void *buffer, const int size, const char *attr_name, const char *opt_name); char *DtDtsBufferToDataType(const void *buffer, const int size, const char *opt_name); char *DtDtsDataToDataType(const char *filepath, const void *buffer, const int size, const struct stat *stat_buff, const char *link_path, const struct stat *link_stat_buff, const char *opt_name); int DtDtsDataTypeIsAction(const char *datatype); char **DtDtsDataTypeNames(void); DtDtsAttribute **DtDtsDataTypeToAttributeList(const char *datatype, const char *opt_name); char *DtDtsDataTypeToAttributeValue(const char *datatype, const char *attr_name, const char *opt_name); DtDtsAttribute **DtDtsFileToAttributeList(const char *filepath); char *DtDtsFileToAttributeValue(const char *filepath, const char *attr_name); char *DtDtsFileToDataType(const char *filepath); char **DtDtsFindAttribute(const char *attr_name, const char *attr_value); void DtDtsFreeAttributeList(DtDtsAttribute **attr_list); void DtDtsFreeAttributeValue(char *attr_value); void DtDtsFreeDataType(char *datatype); void DtDtsFreeDataTypeNames(char **namelist); void DtDtsLoadDataTypes(void); void DtDtsRelease(void); char *DtDtsSetDataType(const char *dirpath, const char *datatype, const int override); Dt/Dts.h(file formats)
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