bugAVR C Runtime Library - Bugs: bug #37951, qsort will throw throws warning

 
 

bug #37951: qsort will throw throws warning

Submitted by:  Georg-Johann Lay <gjlayde>
Submitted on:  Tue 18 Dec 2012 01:07:20 PM UTC  
 
Category:  Library Severity:  3 - Normal
Priority:  5 - Normal Item Group:  libc code
Status:  None Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Release:  1.8.0 Fixed Release:  None

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Tue 18 Dec 2012 01:07:20 PM UTC, original submission:

Building qsort (SVN 2303) throws following build warnings with avr-gcc-4.8-trunk:

avr-gcc -DHAVE_CONFIG_H -I. -I../../../../../source/avr-libc-1.8/avr/lib/avrxmega7 -I../../.. -I../../../../../source/avr-libc-1.8/common -I../../../../../source/avr-libc-1.8/include -I../../../include -g -Wall -W -Wstrict-prototypes -mmcu=avrxmega7 -D__COMPILING_AVR_LIBC__ -Os -fno-jump-tables -MT qsort.o -MD -MP -MF .deps/qsort.Tpo -c -o qsort.o ../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c: In function 'qsort':
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c:37:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
#define min(a, b) ((a) < (b) ? (a) : (b))
^
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c:140:6: note: in expansion of macro 'min'
r = min(pd - pc, pn - pd - es);
^
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c:37:36: warning: signed and unsigned type in conditional expression [-Wsign-compare]
#define min(a, b) ((a) < (b) ? (a) : (b))
^
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c:140:6: note: in expansion of macro 'min'
r = min(pd - pc, pn - pd - es);
^
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c:142:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if ((r = pb - pa) > es)
^
../../../../../source/avr-libc-1.8/libc/stdlib/qsort.c:144:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if ((r = pd - pc) > es) {
^

Georg-Johann Lay <gjlayde>

 

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