I am finding the maximum value of a char
by simple addition and testing for when the number goes negative:
#include<stdio.h>
/*find max value of char by adding*/
int main(){
char c = 1;
while(c + 1 > 0)
++c;
printf("Max c = %d\n",(int)c); /*outputs Max c = -128*/
return 0;
}
The while
loop tests ahead, so the first time c+1
is negative it breaks and we print the value of c
. However, the programming is outputting the negative number!
Why doesn't this program output 127
?
Maximum value of unsigned char in C++ Unsigned char data type in C++ is used to store 8-bit characters. A maximum value that can be stored in an unsigned char data type is typically 255, around 28 – 1(but is compiler dependent).
The maximum length of a string literal allowed in Microsoft C is approximately 2,048 bytes.
Value of INT_MAX is +2147483647. Value of INT_MIN is -2147483648.
Write a C Program to Find Maximum Occurring Character in a String with example. This program allows the user to enter a string (or character array). Next, it will find the maximum occurring character (most repeated character) inside a string. First, we declared a Freq array of size 256, which will initially hold 0’s.
A maximum value that can be stored in a signed char data type is typically 127, around 27 – 1 (but is compiler dependent ). The maximum and minimum value that can be stored in a signed char is stored as a constant in climits header file and can be named as SCHAR _ MAX and SCHAR_MIN respectively.
A maximum value that can be stored in an unsigned char data type is typically 255, around 28 – 1 (but is compiler dependent). The maximum value that can be stored in an unsigned char is stored as a constant in the <climits> header file, whose value can be used as UCHAR _ MAX.
C programming code to find maximum using function. Our function returns index at which maximum element occur. int find_maximum(int[], int); int c, array[100], size, location, maximum; printf("Input number of elements in arrayn"); scanf("%d", &size);
There is an implicit cast occurring in the while conditional which is causing the comparison to work on ints rather than chars.
If you change it to
while((char)(c + 1) > 0)
++c;
then it will print 127.
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