test_implicit.c:7: warning: return type defaults to `int' test_implicit.c: In function `test': test_implicit.c:18: warning: implicit declaration of function `sub' [-Wmissing-braces] 当聚合类型或者数组变量的初始化表达式没有'充分'用括号{}括起时,给出警告。文字表述很难理解,举例说明则清晰些...
gcc -Wimplicit -c test_implicit.ctest_implicit.c:7: warning: return type defaults to `int'test_implicit.c: In function `test':test_implicit.c:18: warning: implicit declaration of function `sub' 1.5 [-Wmissing-braces] [-Wmissing-braces]当聚合类型或者数组变量的初始化表达式没有'充分'用括号...
gcc -Wimplicit -c test_implicit.c test_implicit.c:7: warning: return type defaults to `int' test_implicit.c: In function `test': test_implicit.c:18: warning: implicit declaration of function `sub' [-Wmissing-braces] 当聚合类型或者数组变量的初始化表达式没有'充分'用括号{}括起时,给出警...
-Wimplicit (C and Objective-C only) 与-Wimplicit-int和-Wimplicit-function-declaration相同 。 此警告由-Wall启用。 -Wimplicit-fallthrough -Wimplicit- fallthrough与-Wimplicit- fallthrough = 3相同 , -Wno-implicit-fallthrough与-Wimplicit- fallthrough = 0相同 。 -Wimplicit-fallthrough= n 当开关...
-Wimplicit-function-declaration 对隐式函数声明给出警告 -Wimplicit-int 当声明未指定类型时给出警告 -Wimplicit-interface 对带有隐式接口的调用给出警告 -Wimplicit-procedure 对没有隐式声明的过程调用给出警告 -Winit-self 对初始化为自身的变量给出警告。
-Wchar-subscripts -Wimplicit-int -Wimplicit-function-declaration -Wcomment -Wformat -Wmain (only for C/ObjC and unless -ffreestanding) -Wmissing-braces -Wnonnull -Wparentheses -Wpointer-sign -Wreorder -Wreturn-type -Wsequence-point -Wsign-compare (only in C++) -Wstrict-aliasing -Wstrict-over...
-Wimplicit-function-declaration 对隐式函数声明给出警告 -Wimplicit-int 当声明未指定类型时给出警告 -Wimplicit-interface 对带有隐式接口的调用给出警告 -Wimplicit-procedure 对没有隐式声明的过程调用给出警告 -Winit-self 对初始化为自身的变量给出警告。
CFLAGS := -Wall -Wundef -Wshadow -Wconversion -Werror=return-type \ -Werror=implicit-function-declaration -Werror=unused-variable \ -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \ -Wno-trigraphs -Os 对于调试版本,将-Os替换为-g -Og。 一 警告选项 GCC编译器支持对代码进行诊断,针...
-Wimplicit-function-declaration 对隐式函数声明给出警告 -Wimplicit-int 当声明未指定类型时给出警告 -Wimplicit-interface 对带有隐式接口的调用给出警告 -Wimplicit-procedure 对没有隐式声明的过程调用给出警告 -Winit-self 对初始化为自身的变量给出警告。
-Warray-bounds=1 (only with -O2) -Wc++11-compat -Wc++14-compat -Wchar-subscripts -Wenum-compare (in C/ObjC; this is on by default in C++) -Wimplicit-int (C and ObjecTIve-C only) -Wimplicit-funcTIon-declaraTIon (C and ObjecTIve-C only) ...