Hi Jiri, As per the documentation, http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html -Wmissing-field-initializers Warn if a structure's initializer has some fields missing. For example, the following code would cause such a warning, because x.h is implicitly zero: struct s { int f, g, h; }; struct s x = { 3, 4 }; This option does not warn about designated initializers, so the following modification would not trigger a warning: struct s { int f, g, h; }; struct s x = { .f = 3, .g = 4 }; This warning is included in -Wextra. To get other -Wextra warnings without this one, use '-Wextra -Wno-missing-field-initializers'. HTH, --Eljay
