C language Coercion type conversion

One, coercion type conversion

printf ("3/2+100.5=%f", 3/2+100.5);//100.5 Error expression

printf ("(float) 3/(float) 2 +100.5f=%f \ n", (float) 3/(float) 2 +100.5f); (float) Prefix

Two, automatic type conversion and implicit type conversion

Example 1:

printf ("3/2+100.5=%f \ n", (float) 3/2 +100.5f);

printf ("3/2+100.5=%f \ n", 3/(float) 2 +100.5f);

printf ("3/2+100.5=%f \ n", 3/2.0f +100.5f);

printf ("3/2+100.5=%f \ n", 3.0f/2 +100.5f);

Example 2:

Char v1=2;

Short v2=111111;

float v3=3.45;

Double V4=10.0f/3;

V1=v2;

printf ("V1=%hd,v2=%hd,v3=%f,v4=%f \ n", v1,v2,v3,v4);

Example 3:

int a=3,b=2;

float c=100.5f;

printf ("3/2+100.5=%f \ n", a/b+c);

printf ("3/2+100.5=%f \ n", (float) a/b+c);

printf ("3/2+100.5=%f \ n", A/(float) b+c);

Conversion Order: Automatically translates to high types for calculation when low and high type operations are performed

Char, Short,int,long long,float,double

C language Coercion type conversion