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Why would someone want to do this?

CrazyIvan · 2000-07-13T13:23:24

Hi, in my quest to become a real good programmer i started reading the online version of Thinking in C++. I saw a little (the first actually) code example.. //: C02:Declare.cpp // Declaration & definition examples extern int i; // Declaration without definition extern float f(float); // Function declaration float b; // Declaration & definition float f(float a) { // Definition return a + 1.0; } int i; // Definition int h(int x) { // Declaration & definition return x + 1; } int main() { b = 1.0; i = 2; f(b); h(i); } ///:~ My question is why would someone want to use extern int i; (the declaration) and later on just use int i; (the definition)? If this is the wrong forum for a newbie question please let me know i''m new to these forums

General and Gameplay Programming Programming

Started by CrazyIvan July 09, 2000 06:37 AM

10 comments, last by CrazyIvan 24 years, 5 months ago

Myopic Rhino

2,383

July 13, 2000 12:17 PM

quote: Original post by wrenhal

Actually, my understanding is it''s the # of replies since your last visit to the forum.
Maybe not.

Nope, it''s the total number of replies. We just uploaded a fix that appears to be working most of the time.

wrenhal

122

July 13, 2000 01:23 PM

quote: Original post by Myopic Rhino

Original post by wrenhal

Actually, my understanding is it''s the # of replies since your last visit to the forum.
Maybe not.

Nope, it''s the total number of replies. We just uploaded a fix that appears to be working most of the time.

For now it seems to be working. I''ll keep testing it though.

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Why would someone want to do this?

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Why would someone want to do this?

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