aboutsummaryrefslogtreecommitdiff
path: root/ch2/2-10_lower.c
blob: 44cdde75f1d9ee06c0fb95f2f2cbf5c0cccccce4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
#include <stdio.h>

/* The C Programming Language: 2nd Edition
 *
 * Exercise 2-10: Rewrite the function 'lower', which converts upper case
 * letters to lower case, with a conditional expression instead of if-else.
 *
 * Answer: The tertiary ?: operators also _evaluate_, so they can be used in
 * a lot of different places.
 */

int lower(int c) {
	return (c >= 'A' && c <= 'Z') ? c + 'a' - 'A' : c;
}

int main() {
	char foo = 'F';
	printf("The following letter should be lowercase: %c\n", lower(foo));
	return 0;
}
ertions'>+92 2018-10-06cli: Add "delete" commandzlg2-0/+19 2018-10-06Remove ID field from DBzlg3-38/+46 2018-10-06cli: change "Status" heading to "Progress"zlg2-36/+40 2018-09-29Bump to 0.3alpha5 for PyPIzlg1-1/+1 2018-09-29cli: Add pretty printing to 'list' commandzlg3-17/+107 2018-09-08setup.py: Bump to alpha4 for PyPIzlg1-1/+1 2018-09-08cli: add '--raw' option to list commandzlg2-9/+45 2018-09-08Add remaining filters to vgstash packagezlg1-2/+11 2018-09-04Update LICENSE to match setup.pyzlg1-80/+67 2018-09-03Branch off from master with pytest, tox, clickzlg16-778/+779 2018-03-18Flesh out filter types and ownership statuszlg3-82/+144 2018-03-18README.mdown: break line correctlyzlg1-1/+1 2018-03-18add 'playlog' list filterzlg2-2/+9 2018-03-13Update helpers a bitzlg1-2/+9 2018-03-13Make VGSTASH_DB_LOCATION point to a filezlg2-21/+20 2016-11-18Remove settings from helpers.shZe Libertine Gamer1-5/+0 2016-11-15Correct phrasing in README.Ze Libertine Gamer1-4/+4 2016-11-13DerpZe Libertine Gamer1-0/+1 2016-11-03Improve error handling in shell scriptsZe Libertine Gamer4-3/+23 2016-10-24Correct run_again, add recursionZe Libertine Gamer1-0/+4 2016-10-21Add quotes to correct behavior for arglistZe Libertine Gamer1-1/+1 2016-10-14updater.sh: add recursion, error handlingZe Libertine Gamer1-43/+101 2016-10-14Correct pipe-handling behaviorZe Libertine Gamer1-1/+9 2016-10-12Clarify a method to move between platformsZe Libertine Gamer1-2/+5