On 28 Sep, Mark B. Elrod wrote:
> since the mailing list does not like us asking for help int he subject
> line here is my message again...
>
> i have a string which has a bunch of numbers i want to read out and then
> a char buffer as well. the string is of the form:
>
> [num fields] [length field 1] [length field 2] ... [length field n -1]
> [length field n] [buffer]
>
> i can easily read the beginning numbers but the data blob is elluding
> me. for the first part i want to use the delimiting behavior of >> to
> pull out the individual numbers but for the second part i want to just
> get the remainder of the stream including whitespace. anyone out there
> who is knowledgeable about streams? here is my code so far:
Probably not how you want to do this, but it works:
#include <stdio.h>
#include <string>
typedef unsigned int uint32;
int main(void)
{
string data("2 10 17 mark [EMAIL PROTECTED]");
uint32 numFields, offset = 0;
sscanf(data.c_str(), "%d%n", &numFields, &offset);
uint32* fieldLength = new uint32[numFields];
for(uint32 i = 0; i < numFields; i++)
{
uint32 temp;
sscanf(data.c_str() + offset, " %d %n", &fieldLength[i], &temp);
printf("field %d: %d\n", i, fieldLength[i]);
offset += temp;
}
string copy = data;
copy.erase(0, offset);
printf("%s\n", copy.c_str());
}
That gives:
field 0: 10
field 1: 17
mark [EMAIL PROTECTED]
Right, no?
--ruaok Freezerburn! All else is only icing. -- Soul Coughing
Robert Kaye -- [EMAIL PROTECTED] http://moon.eorbit.net/~robert
