diff options
Diffstat (limited to 'tests/usr.bin/xlint/lint1/platform_ilp32_long.c')
| -rw-r--r-- | tests/usr.bin/xlint/lint1/platform_ilp32_long.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/tests/usr.bin/xlint/lint1/platform_ilp32_long.c b/tests/usr.bin/xlint/lint1/platform_ilp32_long.c index 5a1fb977719..c2c46d9f5fe 100644 --- a/tests/usr.bin/xlint/lint1/platform_ilp32_long.c +++ b/tests/usr.bin/xlint/lint1/platform_ilp32_long.c @@ -1,4 +1,4 @@ -/* $NetBSD: platform_ilp32_long.c,v 1.3 2023/07/03 21:36:16 rillig Exp $ */ +/* $NetBSD: platform_ilp32_long.c,v 1.4 2023/07/08 15:26:25 rillig Exp $ */ # 3 "platform_ilp32_long.c" /* @@ -22,15 +22,17 @@ void convert_between_int_and_long(void) { /* - * Even though 'long' and 'int' have the same size on this platform, - * the option '-p' enables additional portability checks that assume - * a 24-bit int and a 32-bit long type, to proactively detect loss of - * accuracy on potential other platforms. + * The '-p' option enables checks that apply independently of the + * current platform, assuming that 'long' is always wider than 'int'. + * This assumption, when applied on its own, leads to wrong warnings + * that a 32-bit 'long' may lose accuracy when converted to a 32-bit + * 'int'. + * + * To avoid these, take a look at the actually possible values of the + * right-hand side, and if they fit in the left-hand side, don't warn. */ - /* expect+1: warning: conversion from 'long' to 'int' may lose accuracy [132] */ s32 = sl32; sl32 = s32; - /* expect+1: warning: conversion from 'unsigned long' to 'unsigned int' may lose accuracy [132] */ u32 = ul32; ul32 = u32; } |
