Wandbox

Ran/Viewed Log

Author

anonymous

almost 6 years ago

Language

C++

Compiler

gcc HEAD 10.0.0 20190527 (experimental)

Options

Warnings

Boost 1.70.0

C++2a(GNU)

no pedantic

Author

anonymous

almost 6 years ago

$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.70.0/gcc-head/include -std=gnu++2a

prog.cc: In function 'int main()':
prog.cc:19:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   19 |     printf("%d\n",v.size()-1);
      |             ~^    ~~~~~~~~~~
      |              |            |
      |              int          std::vector<int>::size_type {aka long unsigned int}
      |             %ld
prog.cc:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for (int i=1;i<v.size();i++)
      |                  ~^~~~~~~~~
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Exit Code:

0