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Full Discussion: How to get the correct exception file/line.
Top Forums Programming How to get the correct exception file/line. Post 302332381 by SamRoj on Thursday 9th of July 2009 02:34:44 AM
Old 07-09-2009
How to get the correct exception file/line.
The below code throws error in the line number 32 where the function is defined.

But How to find the line where the function is called.
That is I want to throw the error at the line number 43 (as here the function is called).


The code is:

#include <iostream>
#include <string>
#include <sstream>
using namespace std;
class myEx {
std:: string _file, _message;
int _line;
public:
myEx(std::string file, int line);
std::string toString();
};
myEx::myEx(string file, int line) {
_file = file;
_line = line;
_message = "Unable to copy. ";
toString();
}
string myEx::toString()
{
ostringstream os;
os << _message <<"Error occurred at " << _file << ":" << _line;
return os.str();
}
template <typename T, int size_x>
static void toCopy(T(&x)[size_x], const T(*y)) {
if(strlen(y) >= size_x) {
throw myEx(__FILE__, __LINE__);
}
strncpy(x, y, size_x);
}

int main()
{
char first[4];
string second = "WELCOME";
try {
toCopy(first, second.c_str());
cout << "Copied Successfully! the " <<first<<endl;
}
catch(myEx &e)
{
cout << e.toString() << endl;
}
return 0;
}

---------- Post updated at 10:34 PM ---------- Previous update was at 10:32 PM ----------

Using macros works well. But I dont want to use macros.
 

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LEARN ABOUT DEBIAN

srconv

SRCONV(1)						  The Canonical Csound Reference						 SRCONV(1)

NAME

       srconv - Converts the sample rate of an audio file. .

DESCRIPTION

       Converts the sample rate of an audio file at sample rate Rin to a sample rate of Rout. Optionally the ratio (Rin / Rout) may be linearly
       time-varying according to a set of (time, ratio) pairs in an auxiliary file.

SYNTAX

	   srconv [flags] infile

INITIALIZATION

       Flags:

       o   -P num = pitch transposition ratio (srate / r) [don't specify both P and r]

       o   -P num = pitch transposition ratio (srate / r) [don't specify both P and r]

       o   -Q num =quality factor (1, 2, 3, or 4: default = 2)

       o   -i filnam = auxiliary breakpoints file (no breakpoint by default. i.e. No ratio change)

       o   -r num = output sample rate (must be specified)

       o   -o fnam = sound output filename

       o   -A = create an AIFF format output soundfile

       o   -J = create an IRCAM format output soundfile

       o   -W = create a WAV format output soundfile

       o   -h = no header on output soundfile

       o   -c = 8-bit signed_char sound samples

       o   -a = alaw sound samples

       o   -8 = 8-bit unsigned_char sound samples

       o   -u = ulaw sound samples

       o   -s = short_int sound samples

       o   -l = long_int sound samples

       o   -f = float sound samples

       o   -r N = orchestra srate override

       o   -K = Do not generate PEAK chunks

       o   -R = continually rewrite header while writing soundfile (WAV/AIFF)

       o   -H# = print a heartbeat style 1, 2 or 3 at each soundfile write

       o   -N = notify (ring the bell) when score or miditrack is done

       o   -- fnam = log output to file

       This program performs arbitrary sample-rate conversion with high fidelity. The method is to step through the input at the desired sampling
       increment, and to compute the output points as appropriately weighted averages of the surrounding input points. There are two cases to
       consider:

	1. sample rates are in a small-integer ratio - weights are obtained from table.

	2. sample rates are in a large-integer ratio - weights are linearly interpolated from table.

       Calculate increment: if decimating, then window is impulse response of low-pass filter with cutoff frequency at half of output sample rate;
       if interpolating, then window is impulse response of lowpass filter with cutoff frequency at half of input sample rate.

CREDITS

       Author: Mark Dolson

       August 26, 1989

       Author: John ffitch

       December 30, 2000

AUTHORS

       Barry Vercoe
       MIT Media Lab

	   Author.

       Dan Ellis
       MIT Media Lab,
		 Cambridge
		 Massachussetts

	   Author.

COPYRIGHT

5.10								    08/01/2011								 SRCONV(1)
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