我的代码为什么不行？
4 W5 J! l3 J" ?7 n3 R) ]出现错误：
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Abort : A memory image file is created as "core"
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#include"pthread.h"
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#include"stdio.h"
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#include"stdlib.h"
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pthread_mutex_t mutex;
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void *function();
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double balance=500.0;
1 X9 g( b: s% D+ o) @int main()
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{
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int i,num_threads=2,a[2];
# _6 R6 {8 n% r6 tpthread_t p_threads[2];
+ f3 s2 ]/ f7 Ipthread_attr_t attr;
7 Y. T$ ~4 R$ \8 `pthread_init();
6 s0 p3 i' r5 O0 _pthread_mutex_init(&mutex,NULL);
* E9 E2 d4 @# {* Spthread_attr_init(&attr);
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pthread_attr_setscope(&attr,PTHREAD_SCOPE_SYSTEM);
$ m1 @* Z9 s# Ifor(i=0;i<num_threads;i++)
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if(pthread_create(&p_threads
,NULL,function,NULL)!=0); P( e( z L0 ?
perror("
thread_create fails");8 n$ y U8 x7 o
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4 A% p3 o! o z- rfor(i=0;i<num_threads;i++)
9 d" Y$ Q) [. R8 ~{if ( pthread_join (p_threads, NULL ) )
+ g2 U( `: g+ e: o( e perror("error joining thread.");
5 z* [# Y* J3 I, C) tabort();
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exit(0);
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void *function()
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double amount1,amount2;
6 R- T0 c5 Y Y6 mpthread_mutex_lock(&mutex);
! }2 M' G/ V" @9 i2 Lprintf("choose your service:\n");% j* P, J0 W9 S
printf(" enter 1 deposit :\n");6 g2 @* b1 G; U* n f
printf(" enter 2 withdraw: \n");: z. o3 _" f; c0 ~1 p" Z( Q
scanf("%c",&c);
+ k1 m5 i2 r9 I k* Zswitch(c)
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case '1':4 s+ K. ]8 [7 r! ]5 b- s. ?5 [( h5 I. Q
printf(" enter the amount deposit:\n");
( k L) g0 C6 Xscanf("%lf",&amount1);
: g9 `" m( ~5 g& i+ j' I3 \if(amount1<0)
T( t2 N( }0 A) S. o7 z d$ A/ sprintf("error:deposit amount is invalidate");4 ], H8 D$ H ~; \9 S- O- A: _, @ r6 F
else{6 G/ W+ C8 j" T; {6 A! |
balance=balance+amount1;6 Z& I6 d" q6 ?9 W' g5 H' \# Q
}
* B3 h5 @! y/ A& H! L* N' }' o6 nprintf("Available: %lf\n",balance);
0 n5 _- R* ^. N3 U0 r6 Pbreak;
, E0 o0 y" r8 r- A! f$ A; ^case '2':' n6 w/ K- Q; y0 M, H5 M: ~
printf("enter the amount withdraw:\n");1 u% y1 H) N9 V( R" p
scanf("%lf",&amount2);" s' P: v; X; W; R5 ^
if(amount2<0)* N2 f- B7 q" P
printf("error: withdraw amount is invalidate");9 D ]2 r8 L) h; w
else{8 P# h$ ~; A+ R v
if(amount2>balance){5 D- ?# n6 i" X4 A( p# @
printf("error:insufficient funds");
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else{
2 L$ I8 N& j- T; |9 }6 S& ibalance=balance-amount2;
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) M1 _7 o$ J4 R, U8 Eprintf("Available: %lf\n",balance);' Q! k3 q- h1 ~$ s3 F& Q
}0 _2 _2 D2 r+ j% s: C1 Y) }
pthread_mutex_unlock(&mutex);8 @. H, L* N8 m v
return;
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