提交记录 2280 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
WAAutoMaton	1000. 测测你的 A+B	Compile Error	0	0 ns	0 KB	C	140 B

提交时间	评测时间
2018-06-23 14:00:00	2020-07-31 21:00:49

代码

unsigned int plus(register  unsigned int a,register  unsigned int b)
{
	__asm__ __volatile__ (
		"add %0,%1"
		:"r"(a),"r"(b));
	return a;
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c: In function ‘plus’:
jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c:5:3: error: output operand constraint lacks ‘=’
    5 |   :"r"(a),"r"(b));
      |   ^
jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c:5:3: error: output operand constraint lacks ‘=’
jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c:3:2: error: output operand constraint lacks ‘=’
    3 |  __asm__ __volatile__ (
      |  ^~~~~~~
jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c:3:2: error: invalid lvalue in asm output 0
jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c:3:2: error: output operand constraint lacks ‘=’
jp_data/tasks/da29ae88d32d11ea899e00163e04388b/contestant.c:3:2: error: invalid lvalue in asm output 1