https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89778
Bug ID: 89778
Summary: std::get_time : %d does not work without leading zeros
Product: gcc
Version: 8.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: myLC at gmx dot net
Target Milestone: ---
#include <ctime>
#include <string>
#include <iomanip>
#include <sstream>
#include <iostream>
void printDate( const std::string &date_string ) {
std::istringstream is( date_string );
std::tm tm{};
static const char *date_format( "%Y/%b/%d" );
// d : parses the day of the month as a decimal number
// (range [01,31]), leading zeroes permitted but not required
is >> std::get_time( &tm, date_format );
char buf[ 20 ];
std::strftime( buf, 20, date_format, &tm );
std::cout << buf << '\n';
}
int main() {
printDate( "2019/Apr/09" );
printDate( "2019/Apr/9" );
std::cout << '\n';
printDate( "2017/Jan/02" );
printDate( "2017/Jan/2" );
std::cout << '\n';
printDate( "2018/Dec/07" );
printDate( "2018/Dec/7" );
}
###############
gcc-bug > g++ --version && g++ get_time-bug.cpp -o get_time-bug &&
./get_time-bug
g++ (Ubuntu 8.1.0-5ubuntu1~14.04) 8.1.0 <=== (x86 64-bit)
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
2019/Apr/09
2019/Apr/00
2017/Jan/02
2017/Jan/00
2018/Dec/07
2018/Dec/00
