Generate code to verify that you do not go beyond the boundary of the stack. You should specify this flag if you are running in an environment with multiple threads, but you only rarely need to specify it in a single-threaded environment since stack overflow is automatically detected on nearl...
-Wenum-int-mismatch (C and Objective-C only) -Wformat=1 -Wformat-contains-nul -Wformat-diag -Wformat-extra-args -Wformat-overflow=1 -Wformat-truncation=1 -Wformat-zero-length -Wframe-address -Wimplicit (C and Objective-C only) -Wimplicit-function-declaration (C and Objective-C only) -Wi...
-Wformat启用的-Wformat-overflow的第1级采用了一种保守的方法,只警告最有可能溢出缓冲区的调用。 在此级别,格式化具有未知值的指令的数字参数假定值为1,未知长度的字符串为空。 已知绑定到其类型的子范围的数字参数,或者其输出受其指令的精度或有限的字符串文字限制的字符串参数被假定为取值范围内的值,该范围导致...
问警告:带有GCC 11.2.1的空目标指针[-Wformat-溢出=]ENJava 中任何对象都有可能为空，当我们调用空...
-Wformat-security 当使用格式字符串的函数可能导致安全问题时给出警告 -Wformat-y2k 当 strftime 格式给出 2位记年时给出警告 -Wformat-zero-length 对长度为 0 的格式字符串给出警告 -Wformat= 此开关缺少可用文档 -Wignored-qualifiers 当类型限定符被忽略时给出警告。
gcc -Wformat test_format.ctest_format.c: In function `main':test_format.c:10: warning: int format, long int arg (arg 2)test_format.c:11: warning: int format, double arg (arg 2) 输出:11078711746 1.4 [-Wimplicit] [-Wimplicit]该警告选项实际上是-Wimplicit-int和-Wimplicit-function-decl...
-Wformat-nonliteral 当格式字符串不是字面值时给出警告 -Wformat-security 当使用格式字符串的函数可能导致安全问题时给出警告 -Wformat-y2k 当 strftime 格式给出 2位记年时给出警告 -Wformat-zero-length 对长度为 0 的格式字符串给出警告 -Wformat= 此开关缺少可用文档 ...
Wformat -Wformat=2 -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral -Wformat-overflow=n -Wformat-security -Wformat-signedness -Wformat-truncation=n -Wformat-y2k -Wframe-address -Wframe-larger-than=len -Wno-free-nonheap-object -Wjump-misses-init -Wignored-qualifiers -W...
Wformat-contains-nul -Wformat-extra-args -Wformat-nonliteral -Wformat-security -Wformat-signedness - Wformat-y2k -Wformat-zero-length -Wfree-nonheap-object -Wfunction-elimination -Wignored-qualifiers -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Wimplicit-interface -Wimplicit-procedure -...
○ -Wshift-overflow warns about left shift overflows. This warning is enabled by default. -Wshift-overflow=2 also warns about left-shifting 1 into the sign bit. ○ -Wtautological-compare warns if a self-comparison always evaluates to true or false. This warning is enabled by -Wall. ...