Printf long long int in C with GCC

Question

How do I printf long long int and also unsigned long long int in C99 using GCC    I have searched the other posts which suggest to use  lld but it gives these warnings      warning 1  unknown conversion type character  l  in format  -Wformat     warning 2  too many arguments for format  -Wformat-extra-args     For the following attempt    include  lt stdio h gt   int main        long long int x   0     unsigned long long int y   0     printf   lld n   x      printf   llu n   y

User · Accepted Answer

If you are on windows and using mingw  gcc uses the win32 runtime  where printf needs  I64d for a 64 bit integer   and  I64u for an unsinged 64 bit integer    For most other platforms you d use  lld for printing a long long   and  llu if it s unsigned   This is standarized in C99   gcc doesn t come with a full C runtime  it defers to the platform it s running on - so the general case is that you need to consult the documentation for your particular platform - independent of gcc

User · Answer

For portable code  the macros in inttypes h may be used  They expand to the correct ones for the platform    E g  for 64 bit integer  the macro PRId64 can be used    int64 t n   7  printf  n is    PRId64   n   n

User · Answer

You can try settings of code  block  there is a complier     then you select in C mode

User · Answer

Try to update your compiler  I m using GCC 4 7 on Windows 7 Starter x86 with MinGW and it compiles fine with the same options both in C99 and C11

[c] Printf long long int in C with GCC?

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