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zero padded not using dyn mem alloc now

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This commit is contained in:
Robin Müller 2020-06-04 17:30:09 +02:00
parent 11c64a91a3
commit 1cb241ca0c
1 changed files with 22 additions and 9 deletions
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31
serviceinterface/ServiceInterfaceBuffer.h
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@ -1,6 +1,7 @@
#ifndef FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACEBUFFER_H_
#define FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACEBUFFER_H_
#include <framework/returnvalues/HasReturnvaluesIF.h>
#include <iostream>
#include <sstream>
#include <iomanip>
@ -58,21 +59,33 @@ private:
/**
* This helper function returns the zero padded string version of a number.
* The type is deduced automatically.
* TODO: This uses dynamic memory allocation, so we should provide
* a custom streambuf class to use it (which takes maxSize as argument)
* Then we would propably
* @tparam T
* @param num
* @param width
* @return
*/
template<typename T>
std::string zero_padded(const T& num, uint8_t width) {
std::ostringstream string_to_pad;
string_to_pad << std::setw(width) << std::setfill('0') << num;
std::string result = string_to_pad.str();
if (result.length() > width)
{
result.erase(0, result.length() - width);
}
return result;
ReturnValue_t zeroPadded(std::string stringToFill, const T& num,
uint8_t width) {
auto numString = std::to_string(num);
uint8_t i = 0;
for(i = 0; i < width; i++) {
stringToFill[i] = '0';
}
numString.copy(stringToFill.data() + i, numString.size());
// std::streambuf streambuf;
// std::ostringstream string_to_pad;
// string_to_pad << std::setw(width) << std::setfill('0') << num;
// std::string result = string_to_pad.str();
// if (result.length() > width)
// {
// result.erase(0, result.length() - width);
// }
// return result;
//std::string dest = std::string( number_of_zeros, '0').append( original_string);
}
};