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Error: 'for' loop initial declaration used outside c99 mode

Submitted by rex on Tue, 05/05/2009 - 00:53

What is wrong with this in c?

for(int i=0;i<n;i++){
....
}

this for loop is allow in c++ or in java, but if you compile your c code with gcc you will get the error:

'for' loop initial declaration used outside c99 mode

to resolve this problem just declare your variable before of you 'for loop' like

int i;
for(i=0;i<n;i++){
...
}
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