Arjun Suresh (talk | contribs) |
Arjun Suresh (talk | contribs) |
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</syntaxhighlight> | </syntaxhighlight> | ||
− | === | + | ==={{Template:Author|Arjun Suresh|{{arjunweb}} }}=== |
− | int *a; / | + | <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 | ||
− | *a = 5; / | + | <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() {
int *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>
int *a; // This declares a as an integer pointer, meaning a can point to a memory address which contains an int