diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 7ef352e..b2f7bbe 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -4664,26 +4664,29 @@ grokdeclarator (tree declarator, tree declspecs, } else if (TREE_CODE (type) == FUNCTION_TYPE) { - if (specbits & (1 << (int) RID_AUTO) - && (pedantic || current_scope == file_scope)) - pedwarn ("invalid storage class for function `%s'", name); - if (specbits & (1 << (int) RID_REGISTER)) - error ("invalid storage class for function `%s'", name); - if (specbits & (1 << (int) RID_THREAD)) + if (specbits & (1 << (int) RID_REGISTER) + || specbits & (1 << (int) RID_THREAD)) error ("invalid storage class for function `%s'", name); - /* Function declaration not at file scope. - Storage classes other than `extern' are not allowed - and `extern' makes no difference. */ - if (current_scope != file_scope - && (specbits & ((1 << (int) RID_STATIC) | (1 << (int) RID_INLINE))) - && pedantic) - pedwarn ("invalid storage class for function `%s'", name); + else if (current_scope != file_scope) + { + /* Function declaration not at file scope. Storage + classes other than `extern' are not allowed, C99 + 6.7.1p5, and `extern' makes no difference. However, + GCC allows 'auto', perhaps with 'inline', to support + nested functions. */ + if (specbits & (1 << (int) RID_AUTO)) + { + if (pedantic) + pedwarn ("invalid storage class for function `%s'", name); + } + if (specbits & (1 << (int) RID_STATIC)) + error ("invalid storage class for function `%s'", name); + } decl = build_decl (FUNCTION_DECL, declarator, type); decl = build_decl_attribute_variant (decl, decl_attr); - DECL_LANG_SPECIFIC (decl) - = GGC_CNEW (struct lang_decl); + DECL_LANG_SPECIFIC (decl) = GGC_CNEW (struct lang_decl); if (pedantic && type_quals && ! DECL_IN_SYSTEM_HEADER (decl)) pedwarn ("ISO C forbids qualified function types"); |