代码：

#include "rtptimeutilities.h"#include 
     
      #include 
      
       using namespace std;using namespace jrtplib;int main(void){	double times[] = { 1.2, -2.3, 0, 3.999999 };	for (int i = 0 ; i < sizeof(times)/sizeof(double) ; i++)	{		RTPTime t(times[i]);		cout << "Double:       " << times[i] << endl;		cout << "Seconds:      " << t.GetSeconds() << endl;		cout << "Microseconds: " << t.GetMicroSeconds() << endl;		cout << endl;	}	int32_t secsAndMuSecs[][2] = { { 1, 3000}, {-2, 200}, {0, 0}, {-2, 999999} };	for (int i = 0 ; i < sizeof(secsAndMuSecs)/(2*sizeof(int32_t)) ; i++)	{		RTPTime t(secsAndMuSecs[i][0], secsAndMuSecs[i][1]);		cout << "Input Seconds:       " << secsAndMuSecs[i][0] << endl;		cout << "Input Microseconds:  " << secsAndMuSecs[i][1] << endl;		cout << "Output Seconds:      " << t.GetSeconds() << endl;		cout << "Output Microseconds: " << t.GetMicroSeconds() << endl;		cout << "Output Double:       " << t.GetDouble() << endl;		cout << endl;	}	for (int i = 0 ; i < 10 ; i++)	{		RTPTime now = RTPTime::CurrentTime();		fprintf(stderr, "%10u.%06d\n", (uint32_t)now.GetSeconds(), now.GetMicroSeconds());		RTPTime::Wait(RTPTime(1));	}	return 0;}
      
     

　　运行结果：

/timetest

Double: 1.2

Seconds: 1

Microseconds: 200000

Double: -2.3

Seconds: -2

Microseconds: 300000

Double: 0

Seconds: 0

Microseconds: 0

Double: 4

Seconds: 3

Microseconds: 999999

Input Seconds: 1

Input Microseconds: 3000

Output Seconds: 1

Output Microseconds: 3000

Output Double: 1.003

Input Seconds: -2

Input Microseconds: 200

Output Seconds: -2

Output Microseconds: 200

Output Double: -2.0002

Input Seconds: 0

Input Microseconds: 0

Output Seconds: 0

Output Microseconds: 0

Output Double: 0

Input Seconds: -2

Input Microseconds: 999999

Output Seconds: -2

Output Microseconds: 999999

Output Double: -3

1541561350.472532

1541561351.473606

1541561352.474346

1541561353.474663

1541561354.475759

1541561355.476676

1541561356.477701

1541561357.478725

1541561358.479587

1541561359.480622

有关函数的源码：

double GetDouble() const                                                                                { return (((double)sec)+(((double)microsec)/1000000.0)); }inline RTPTime::RTPTime(double t)   {           sec = (uint32_t)t;              double t2 = t-((double)sec);           t2 *= 1000000.0;           microsec = (uint32_t)t2;   } RTPTime(uint32_t seconds, uint32_t microseconds)                                                { sec = seconds; microsec = microseconds; }              uint32_t GetSeconds() const                                                                             { return sec; }              uint32_t GetMicroSeconds() const                                                                { return microsec; }