Arjun Suresh (talk | contribs) |
Arjun Suresh (talk | contribs) |
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</syntaxhighlight> | </syntaxhighlight> | ||
| − | + | ==={{Template:Author|Arjun Suresh|{{arjunweb}} }}=== | |
| + | <syntaxhighlight lang="c"> | ||
| + | int *a; | ||
| + | </syntaxhighlight> | ||
| + | This declares a as an integer pointer, meaning 'a' can point to any memory address which contains an int | ||
| + | <syntaxhighlight lang="c"> | ||
| + | *a = 5; | ||
| + | </syntaxhighlight> | ||
| + | This makes the content of the address pointed to by 'a' 5. But 'a' is not pointing to any valid address (int *a assigns garbage value to 'a') and hence this assignment can cause segmentation fault | ||
| + | |||
| + | {{Template:FBD}} | ||
| − | |||
[[Category:Coding Questions]] | [[Category:Coding Questions]] | ||
<syntaxhighlight lang="c">
int main() {
GATECSEint *a;
*a=5;
printf("%d",a);
return 0;
}
</syntaxhighlight>
<syntaxhighlight lang="c"> int *a; </syntaxhighlight> This declares a as an integer pointer, meaning 'a' can point to any memory address which contains an int
<syntaxhighlight lang="c">
</syntaxhighlight> This makes the content of the address pointed to by 'a' 5. But 'a' is not pointing to any valid address (int *a assigns garbage value to 'a') and hence this assignment can cause segmentation fault
<syntaxhighlight lang="c">
int main() {
int *a;
*a=5;
printf("%d",a);
return 0;
}
</syntaxhighlight>
Invalid memory access