/C++/Round double to n decimal places c++

Round double to n decimal places c++

float roundoff(float value, unsigned char prec)
{
  float pow_10 = pow(10.0f, (float)prec);
  return round(value * pow_10) / pow_10;
}

auto rounded = roundoff(100.123456, 3);
// rounded = 100.123;

Source: stackoverflow.com

Round double to n decimal places c++

value = round( value * 100.0 ) / 100.0; // 2 decimal places
value = round( value * 1000.0 ) / 1000.0; // 3 decimal places

Source: stackoverflow.com

Similar codes

0 vote267 views1 answer
Fabs c c++
C++
0 vote251 views1 answer
Lexene token pairs of java codes
C++
1 vote240 views3 answers
If c++
C++
0 vote282 views1 answer
Fast input and output c++
C++
7 votes243 views5 answers
Set precision in c++
C++
0 vote243 views1 answer
C++ delete printed characters
C++
0 vote245 views1 answer
Pointers mcq sanfoundry
C++
1 vote241 views1 answer
Cpp float to string
C++
-1 vote231 views3 answers
Convert c code to c++
C++
1 vote235 views1 answer
Controlling in windows
C++