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ccnowarn.h
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/* CCNOWARN.H (C) Copyright "Fish" (David B. Trout), 2011 */
/* (C) and others 2013-2023 */
/* Suppress compiler warnings */
/* */
/* Released under "The Q Public License Version 1" */
/* (http://www.hercules-390.org/herclic.html) */
/* as modifications to Hercules. */
/* This header forces suppression of certain compiler warnings */
/* that frequently occur all throughout most of Hercules. */
/*-------------------------------------------------------------------*/
/* The "DISABLE_xxx_WARNING" and "ENABLE_xxx_WARNING" macros allow */
/* you to temporarily suppress certain harmless compiler warnings. */
/* */
/* Sample usage: DISABLE_GCC_WARNING( "-Wpointer-to-int-cast" ) */
/* DISABLE_MSVC_WARNING( 4142 ) // "benign redefinition of type" */
/* Use the "_DISABLE" macro before the source statement which is */
/* causing the problem and the "ENABLE" macro shortly afterwards. */
/* */
/* PLEASE DO NOT GO OVERBOARD (overdo or overuse) THE SUPPRESSION */
/* OF WARNINGS! Most warnings are actually bugs waiting to happen. */
/* */
/* The "DISABLE_xxx_WARNING" and "ENABLE_xxx_WARNING" macros are */
/* only meant as a temporary measure until the warning itself can */
/* be properly investigated and resolved. */
/*-------------------------------------------------------------------*/
#ifndef _CCNOWARN_H_
#define _CCNOWARN_H_
#include "ccfixme.h" /* need HAVE_GCC_DIAG_PRAGMA, QPRAGMA, etc */
/*-----------------------------------------------------------------*/
/* MSVC */
/*-----------------------------------------------------------------*/
#if defined( _MSVC_ )
#define DISABLE_MSVC_WARNING( _num ) __pragma( warning( disable : _num ) )
#define ENABLE_MSVC_WARNING( _num ) __pragma( warning( default : _num ) )
#define PUSH_MSVC_WARNINGS() __pragma( warning( push ))
#define POP_MSVC_WARNINGS() __pragma( warning( pop ))
/* Globally disable some uninteresting MSVC compiler warnings */
DISABLE_MSVC_WARNING( 4127 ) // "conditional expression is constant"
DISABLE_MSVC_WARNING( 4142 ) // "benign redefinition of type"
DISABLE_MSVC_WARNING( 4146 ) // "unary minus operator applied to unsigned type, result still unsigned"
DISABLE_MSVC_WARNING( 4200 ) // "nonstandard extension used : zero-sized array in struct/union"
DISABLE_MSVC_WARNING( 4244 ) // "conversion from 'x' to 'y', possible loss of data"
DISABLE_MSVC_WARNING( 4267 ) // "conversion from size_t to int possible loss of data"
DISABLE_MSVC_WARNING( 4748 ) // "/GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function"
#endif /* defined( _MSVC_ ) */
#ifndef PUSH_MSVC_WARNINGS
#define PUSH_MSVC_WARNINGS() /* (do nothing) */
#define POP_MSVC_WARNINGS() /* (do nothing) */
#define DISABLE_MSVC_WARNING( _str ) /* (do nothing) */
#define ENABLE_MSVC_WARNING( _str ) /* (do nothing) */
#endif
/*-----------------------------------------------------------------*/
/* GCC or CLANG */
/*-----------------------------------------------------------------*/
#if defined( HAVE_GCC_DIAG_PRAGMA )
#define DISABLE_GCC_WARNING( _str ) QPRAGMA( GCC diagnostic ignored _str )
#define ENABLE_GCC_WARNING( _str ) QPRAGMA( GCC diagnostic warning _str )
#if defined( HAVE_GCC_SET_UNUSED_WARNING )
#define DISABLE_GCC_UNUSED_SET_WARNING \
DISABLE_GCC_WARNING("-Wunused-but-set-variable")
#endif
#if defined( HAVE_GCC_UNUSED_FUNC_WARNING )
#define DISABLE_GCC_UNUSED_FUNCTION_WARNING \
DISABLE_GCC_WARNING("-Wunused-function")
#endif
#if defined( HAVE_GCC_DIAG_PUSHPOP )
#define PUSH_GCC_WARNINGS() QPRAGMA( GCC diagnostic push )
#define POP_GCC_WARNINGS() QPRAGMA( GCC diagnostic pop )
#endif
#endif /* defined( HAVE_GCC_DIAG_PRAGMA ) */
#ifndef DISABLE_GCC_WARNING
#define DISABLE_GCC_WARNING( _str ) /* (do nothing) */
#define ENABLE_GCC_WARNING( _str ) /* (do nothing) */
#endif
#ifndef DISABLE_GCC_UNUSED_SET_WARNING
#define DISABLE_GCC_UNUSED_SET_WARNING /* (do nothing) */
#endif
#ifndef DISABLE_GCC_UNUSED_FUNCTION_WARNING
#define DISABLE_GCC_UNUSED_FUNCTION_WARNING /* (do nothing) */
#endif
#ifndef PUSH_GCC_WARNINGS
#define PUSH_GCC_WARNINGS() /* (do nothing) */
#define POP_GCC_WARNINGS() /* (do nothing) */
#endif
/* I am tired of BOGUS warnings about = {0} struct initialization! */
DISABLE_GCC_WARNING( "-Wmissing-field-initializers" )
DISABLE_GCC_WARNING( "-Wmissing-braces" )
/* Silence warnings about CASSERT macro usage within functions too */
#if defined( GCC_VERSION ) && GCC_VERSION >= 40800 /* gcc >= 4.8.0 */
DISABLE_GCC_WARNING( "-Wunused-local-typedefs" )
#endif
#if defined( CLANG_VERSION ) && CLANG_VERSION >= 50000 /* clang >= 5.0.0 */
DISABLE_GCC_WARNING( "-Wunused-local-typedef" )
#endif
// "converts between pointers to integer types with different sign"
DISABLE_GCC_WARNING( "-Wpointer-sign" )
/* Mostly annoying bullshit */
#if defined( GCC_VERSION ) && GCC_VERSION >= 60000 /* gcc >= 6.0.0 */
DISABLE_GCC_WARNING( "-Wmisleading-indentation" )
#endif
/* "Output may be truncated writing up to x bytes into a region of size y" */
/* (this warning is usually issued for most all uses of our MSGBUF macro) */
#if defined( GCC_VERSION ) && GCC_VERSION >= 70100 /* gcc >= 7.1.0 */
DISABLE_GCC_WARNING( "-Wformat-truncation" )
#endif
/* Too many false positives on this one */
#if defined( GCC_VERSION ) && GCC_VERSION >= 80000 /* gcc >= 8.0.0 */
DISABLE_GCC_WARNING( "-Wstringop-truncation" )
#endif
/* Almost always false positive bullshit */
#if defined( GCC_VERSION ) && GCC_VERSION >= 110000 /* gcc >= 11.0.0 */
DISABLE_GCC_WARNING( "-Warray-bounds" )
#endif
/* Annoying and NOT a problem */
#if defined( CLANG_VERSION ) && CLANG_VERSION >= 120000 /* clang >= 12.0.0 */
DISABLE_GCC_WARNING( "-Wundefined-inline" )
#endif
/* Silence yet ANOTHER annoying NOT-a-problem warning! */
#if defined( GCC_VERSION ) && GCC_VERSION >= 140101 /* gcc >= 14.1.1 */
DISABLE_GCC_WARNING( "-Wcalloc-transposed-args" )
#endif
/*-----------------------------------------------------------------*/
/* define support for other compilers here */
/*-----------------------------------------------------------------*/
/* Don't forget to define all of the "FIXME" et al. macros too! */
#endif /* _CCNOWARN_H_ */