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How to compare & verify that two structures are equal in

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UroBoros

UroBoros

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Simple 'C 'doubt!

Hai
How can we compare and verify that two structures are equal in C ,Especially in CCS C .

if(realtime==shedule1[0])
{
}

this is giving error. (neumeric expression required)
both are structure variables of same type.

Sorry i am not a 'C' expert !

Picstudent
 

Simple 'C 'doubt!

Sorry, see question 2.8 in the C FAQ:
https://www.eskimo.com/~scs/C-faq/q2.8.html

If you enjoy living dangerously, and have intimate knowledge of your compiler's memory allocation, then you may be able to use a memory compare function such as memcmp(). But beware of non-portability issues.

As you learn C, you will have many questions. This FAQ is a great resource!
 

    UroBoros

    UroBoros

    Points: 2
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Simple 'C 'doubt!

Did not check for errors , but should work OK :


typedef struct {
int a;
char b;
float c;
dluble d;
...'
} mystruct;





comparestruct (mystruct *struct1_p, mystruct *struct2_p)
{
char *p1_p, *p2_p;
int k = sizeof(mystruct);

p1_p = (char *)struct1_p;
p2_p = (char *)struct2_p;
for (;k!=0;k--)
if(*p1_p++ != *p2_p++)
return -1;

return 0;
}
 

    UroBoros

    UroBoros

    Points: 2
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