Nettet下面是 abs () 函数的声明。 int abs(int x) 参数 x -- 完整的值。 返回值 该函数返回 x 的绝对值。 实例 下面的实例演示了 abs () 函数的用法。 #include #include … Nettet8. jan. 2015 · That's because abs () takes an int argument and returns an int value. For example: #include #include int main (void) { unsigned u1 = …
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http://www.c-lang.net/general2/index.html NettetThe abs()function returns the absolute value of an integer argument n. Return Value There is no error return value. absolute value of the argument cannot be represented as an integer. The value of the minimum allowable integer is defined by INT_MIN in the include file. Example that usesabs() gypsum building products
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Nettetint abs(int x) 參數 x -- 這是整數值。 返回值 這個函數返回x的絕對值。 例子 下麵的例子演示了如何使用 abs () 函數。 #include #include int main () { int a, b; a = abs(5); printf("value of a = %d ", a); b = abs(-10); printf("value of b = %d ", b); return(0); } 讓我們編譯和運行上麵的程序,這將產生以下結果: value of a = 5 value of b = 10 上 … Nettet2. sep. 2012 · static unsigned absolute (int x) { if (INT_MIN == x) { /* Avoid tricky arithmetic overflow possibilities */ return ( (unsigned) - (INT_MIN + 1)) + 1U; } else if (x < 0) { return -x; } else { return x; } } Share Improve this answer Follow answered Jul 5, 2015 at 18:50 Molossus Spondee 1,088 9 24 NettetThe functions abs (), absf (), and absl () return the absolute value of an argument n. For the integer version of abs (), the minimum allowable integer is INT_MIN+1 . ( INT_MIN is a macro that is defined in the limits.h header file.) For example, with the z/OS® XL C/C++ compiler, INT_MIN+1 is -2147483648. gypsum board worker job description