Bug #76350 [Opn->Fbk]: comparison of distinct pointer types lacks a cast

Edit report at https://bugs.php.net/bug.php?id=76350&edit=1 ID: 76350 Updated by: cmb@php.net Reported by: ailyin+php_add4_to_if_ind at anchorfree dot com Summary: comparison of distinct pointer types lacks a cast -Status: Open +Status: Feedback Type: Bug Package: Compile Warning Operating System: alpine PHP Version: 7.1.17 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: p is a char* and if_conf.ifc_buf is also supposed to be a char*. Which type does it have in musl libc? [1] <https://man7.org/linux/man-pages/man7/netdevice.7.html> Previous Comments: ------------------------------------------------------------------------ [2018-05-17 00:31:48] ailyin+php_add4_to_if_ind at anchorfree dot com Description: ------------ /usr/src/php/ext/sockets/multicast.c: In function 'php_add4_to_if_index': /usr/src/php/ext/sockets/multicast.c:793:6: warning: comparison of distinct pointer types lacks a cast p < if_conf.ifc_buf + if_conf.ifc_len; ^ Test script: --------------- FROM php:7.1-fpm-alpine AS build-env RUN docker-php-source extract RUN echo '@edge-main http://dl-cdn.alpinelinux.org/alpine/edge/main' >> /etc/apk/repositories RUN echo '@edge-community http://dl-cdn.alpinelinux.org/alpine/edge/community' >> /etc/apk/repositories RUN echo '@edge-testing http://dl-cdn.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories RUN apk update RUN apk add --upgrade apk-tools@edge-main RUN apk add \ coreutils \ postgresql-dev@edge-main \ libmcrypt-dev \ bzip2-dev \ libpng-dev \ libxslt-dev \ gettext-dev \ autoconf \ g++ \ make \ cmake \ geoip-dev \ libmemcached-dev \ cyrus-sasl-dev \ pcre-dev \ git \ file \ freetype-dev \ libjpeg-turbo-dev \ re2c \ libressl-dev@edge-main \ rabbitmq-c-dev@edge-main RUN docker-php-ext-configure \ gd --with-freetype-dir=/usr/lib --with-jpeg-dir=/usr/lib --with-png-dir=/usr/lib RUN docker-php-ext-install -j$(getconf _NPROCESSORS_ONLN) \ mcrypt \ mysqli \ bz2 \ opcache \ calendar \ gd \ pcntl \ xsl \ soap \ shmop \ sysvmsg \ sysvsem \ sysvshm \ sockets \ pdo_mysql \ pdo_pgsql \ pgsql \ wddx Expected result: ---------------- No warning message in the build log. Actual result: -------------- /usr/src/php/ext/sockets/multicast.c: In function 'php_add4_to_if_index': /usr/src/php/ext/sockets/multicast.c:793:6: warning: comparison of distinct pointer types lacks a cast p < if_conf.ifc_buf + if_conf.ifc_len; ^ ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76350&edit=1