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Changed test order in while stmnts to prevent UMR problem. - Evans

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This commit is contained in:
Janet B. Anderson
2000-02-02 22:00:18 +00:00
parent df5ae40387
commit 63e9665e8d
1 changed files with 15 additions and 15 deletions
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src/libCom/postfix.c
+15 -15
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@@ -331,7 +331,7 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
*perror = 0;
if (* pinfix == 0 )
return(0);
pstacktop = &stack[0];
pstacktop = stack;
while (get_element(pinfix,&pelement,&no_bytes) != END){
pinfix += no_bytes;
switch (pelement->type){
@@ -396,8 +396,8 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
/* add operators of higher or equal priority to */
/* postfix notation */
while ((pstacktop->in_stack_pri >= pelement->in_coming_pri)
&& (pstacktop >= &stack[1])){
while ((pstacktop >= stack+1) &&
(pstacktop->in_stack_pri >= pelement->in_coming_pri)) {
*ppostfix++ = pstacktop->code;
pstacktop--;
}
@@ -417,8 +417,8 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
/* add operators of higher or equal priority to */
/* postfix notation */
while ((pstacktop->in_stack_pri >= pelement->in_coming_pri)
&& (pstacktop >= &stack[1])){
while ((pstacktop >= stack+1) &&
(pstacktop->in_stack_pri >= pelement->in_coming_pri)) {
*ppostfix++ = pstacktop->code;
pstacktop--;
}
@@ -448,8 +448,8 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
/* add operators of higher or equal priority to */
/* postfix notation */
while ((pstacktop->in_stack_pri >= in_coming_pri)
&& (pstacktop >= &stack[1])){
while ((pstacktop >= stack+1) &&
(pstacktop->in_stack_pri >= pelement->in_coming_pri)) {
*ppostfix++ = pstacktop->code;
pstacktop--;
}
@@ -470,8 +470,8 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
/* add operators to postfix until open paren */
while (pstacktop->element[0] != '('){
if (pstacktop == &stack[1] ||
pstacktop == &stack[0]){
if (pstacktop == stack+1 ||
pstacktop == stack){
*perror = 6;
*ppostfixStart = BAD_EXPRESSION; return(-1);
}
@@ -489,8 +489,8 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
/* add operators to postfix until matching paren */
while (pstacktop->element[0] != '('){
if (pstacktop == &stack[1] ||
pstacktop == &stack[0]){
if (pstacktop == stack+1 ||
pstacktop == stack){
*perror = 6;
*ppostfixStart = BAD_EXPRESSION; return(-1);
}
@@ -508,8 +508,8 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
/* add operators of higher priority to */
/* postfix notation */
while ((pstacktop->in_stack_pri > pelement->in_coming_pri)
&& (pstacktop >= &stack[1])){
while ((pstacktop >= stack+1) &&
(pstacktop->in_stack_pri >= pelement->in_coming_pri)) {
*ppostfix++ = pstacktop->code;
pstacktop--;
}
@@ -534,7 +534,7 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
}
/* add all operators on stack to postfix */
while (pstacktop >= &stack[1]){
while (pstacktop >= stack+1){
if (pstacktop->element[0] == '('){
*perror = 6;
*ppostfixStart = BAD_EXPRESSION; return(-1);
@@ -562,7 +562,7 @@ long epicsShareAPI postfix(char *pinfix,char *ppostfix,short *perror)
}
/* add all operators on stack to postfix */
while (pstacktop >= &stack[1]){
while (pstacktop >= stack+1){
if (pstacktop->element[0] == '('){
*perror = 6;
*ppostfixStart = BAD_EXPRESSION; return(-1);