LONG_MIN 常量是在 climits 頭文件中定義的宏常量,用於獲取 long int 對象的最小值,返回 long int 對象可以存儲的最小值,即 -9223372036854775808(在 32 位編譯器上) . 注意: 實際值取決於編譯器架構或庫實現。 我們也可以使用<limits.h>頭文件而不是<climits>兩個庫中都定義了作為 LONG_MIN 常量的頭文件。
C：LONG_MIN和LONG_MAX错误[重复]C标准仅定义了这些类型的最小尺寸5.2.4.2.1 | 长_最小值|最...
C：LONG_MIN和LONG_MAX错误[重复]C标准仅定义了这些类型的最小尺寸5.2.4.2.1 | 长_最小值|最...
ipc: msg, make msgrcv work with LONG_MIN Browse files commit 9998983 upstream. When LONG_MIN is passed to msgrcv, one would expect to recieve any message. But convert_mode does *msgtyp = -*msgtyp and -LONG_MIN is undefined. In particular, with my gcc -LONG_MIN produces ...
C++ LONG_MIN constant: Here, we are going to learn about the LONG_MIN macro constant of climits header in C++.
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when if (value < LONG_MIN || value > LONG_MAX) is True? int getLongFromObjectOrReply(client *c, robj *o, long *target, const char *msg) { long long value; if (getLongLongFromObjectOrReply(c, o, &value, msg) != C_OK) return C_ERR; if (value < LONG_MIN || value > LON...
最小值 USHRT_MAX unsigned short 最大值 INT_MAX int 最大值 INT_MIN ...
INT_MIN Minimum value for a variable of type int. -2147483647 - 1 INT_MAX Maximum value for a variable of type int. 2147483647 UINT_MAX Maximum value for a variable of type unsigned int. 4294967295 (0xffffffff) LONG_MIN Minimum value for a variable of type long. -2147483647 - 1 ...
LONG_MAX是long类型，1UL是unsigned long类型，两者相加，得unsigned long类型，值为LONG_MAX+1，而不是溢出。即使从溢出本身来讲，有符号数的溢出是未定义行为，因而想当然地认为LONG_MAX+1=LONG_MIN也是错误的。