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Add missing STD Library Identifiers #7325

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merged 6 commits into from
Mar 8, 2025
Merged

Add missing STD Library Identifiers #7325

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4752427
Add additional Literals for C11 and fix missing / wrongs for c99
wienans Feb 23, 2025
5fc92e0
inttypes and stdint defines
wienans Feb 23, 2025
a5a449b
Update Source
wienans Feb 23, 2025
cf94e0f
Remove trailing white spaces
wienans Feb 23, 2025
e7fcf24
Add Test for Identifiers and Key Words / update Keywords
wienans Mar 1, 2025
da3cee0
Remove Problems with selecting more modern standards
wienans Mar 1, 2025
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208 changes: 184 additions & 24 deletions addons/misra.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,28 @@ def grouped(iterable, n):
['int', 'uint', 'int_least', 'uint_least', 'int_fast', 'uint_fast'],
[8, 16, 32, 64])]

STDINT_H_DEFINES_MIN = ['%s%d_MIN' % (n, v) for n, v in itertools.product(
['INT', 'INT_LEAST', 'INT_FAST',],
[8, 16, 32, 64])]

STDINT_H_DEFINES_MAX = ['%s%d_MAX' % (n, v) for n, v in itertools.product(
['INT', 'UINT','INT_LEAST','UINT_LEAST', 'INT_FAST', 'UINT_FAST',],
[8, 16, 32, 64])]

STDINT_H_DEFINES_C = ['%s%d_C' % (n, v) for n, v in itertools.product(
['INT', 'UINT'],
[8, 16, 32, 64])]


INTTYPES_H_DEFINES = ['%s%d' % (n, v) for n, v in itertools.product(
['PRId', 'PRIi', 'PRIo', 'PRIu', 'PRIx', 'PRIX', 'SCNd',
'SCNi', 'SCNo', 'SCNu', 'SCNx', 'PRIdLEAST', 'PRIiLEAST',
'PRIoLEAST', 'PRIuLEAST', 'PRIxLEAST', 'PRIXLEAST',
'SCNdLEAST', 'SCNiLEAST', 'SCNoLEAST', 'SCNuLEAST',
'SCNxLEAST', 'PRIdFAST', 'PRIiFAST', 'PRIoFAST', 'PRIuFAST',
'PRIxFAST', 'PRIXFAST', 'SCNdFAST', 'SCNiFAST', 'SCNoFAST',
'SCNuFAST', 'SCNxFAST', ],
[8, 16, 32, 64])]
typeBits = {
'CHAR': None,
'SHORT': None,
Expand Down Expand Up @@ -169,7 +190,8 @@ def rawlink(rawtoken):


# Identifiers described in Section 7 "Library" of C99 Standard
# Based on ISO/IEC 9899 WF14/N1256 Annex B -- Library summary
# Based on ISO/IEC 9899:1999 (E) Annex B -- Library summary
# (https://www.dii.uchile.cl/~daespino/files/Iso_C_1999_definition.pdf)
C99_STDLIB_IDENTIFIERS = {
# B.1 Diagnostics
'assert.h': C90_STDLIB_IDENTIFIERS['assert.h'],
Expand Down Expand Up @@ -220,9 +242,13 @@ def rawlink(rawtoken):
'float.h': C90_STDLIB_IDENTIFIERS['float.h'] + ['FLT_EVAL_METHOD'],
# B.7 Format conversion of integer types
'inttypes.h': [
'PRIdMAX', 'PRIiMAX', 'PRIoMAX', 'PRIuMAX', 'PRIxMAX', 'PRIXMAX',
'SCNdMAX', 'SCNiMAX', 'SCNoMAX', 'SCNuMAX', 'SCNxMAX', 'PRIdPTR',
'PRIiPTR', 'PRIoPTR', 'PRIuPTR', 'PRIxPTR', 'PRIXPTR', 'SCNdPTR',
'SCNiPTR', 'SCNoPTR', 'SCNuPTR', 'SCNxPTR',
'imaxdiv_t', 'imaxabs', 'imaxdiv', 'strtoimax',
'strtoumax', 'wcstoimax', 'wcstoumax',
],
] + INTTYPES_H_DEFINES,
# B.8 Alternative spellings
'iso646.h': [
'and', 'and_eq', 'bitand', 'bitor', 'compl', 'not', 'not_eq',
Expand All @@ -246,11 +272,12 @@ def rawlink(rawtoken):
'acoshl', 'asinh', 'asinhf', 'asinhl', 'atanh', 'atanhf', 'atanhl',
'cosh', 'coshf', 'coshl', 'sinh', 'sinhf', 'sinhl', 'tanh', 'tanhf',
'tanhl', 'expf', 'expl', 'exp2', 'exp2f', 'exp2l', 'expm1', 'expm1f',
'expm1l', 'frexpf', 'frexpl', 'ilogb', 'ilogbf', 'ilogbl', 'float',
'expm1l', 'frexpf', 'frexpl', 'ilogb', 'ilogbf', 'ilogbl', 'ldexpf',
'ldexpl', 'logf', 'logl', 'log10f', 'log10l', 'log1p', 'log1pf',
'log1pl', 'log2', 'log2f', 'log2l', 'logb', 'logbf', 'logbl', 'modff',
'modfl', 'scalbn', 'scalbnf', 'scalbnl', 'scalbln', 'scalblnf',
'scalblnl', 'hypotl', 'powf', 'powl', 'sqrtf', 'sqrtl', 'erf', 'erff',
'scalblnl','cbrt', 'cbrtf','cbrtl', 'fabs', 'fabsf', 'fabsl',
'hypotl', 'hypotf', 'powf', 'powl', 'sqrtf', 'sqrtl', 'erf', 'erff',
'erfl', 'erfc', 'erfcf', 'erfcl', 'lgamma', 'lgammaf', 'lgammal',
'tgamma', 'tgammaf', 'tgammal', 'ceilf', 'ceill', 'floorf', 'floorl',
'nearbyint', 'nearbyintf', 'nearbyintl', 'rint', 'rintf', 'rintl',
Expand All @@ -261,7 +288,7 @@ def rawlink(rawtoken):
'remquol', 'copysign', 'copysignf', 'copysignl', 'nan', 'nanf',
'nanl', 'nextafter', 'nextafterf', 'nextafterl', 'nexttoward',
'nexttowardf', 'nexttowardl', 'fdim', 'fdimf', 'fdiml', 'fmax',
'fmaxf', 'fmaxl', 'fmin', 'fminf', 'fminl', 'fmal', 'isgreater',
'fmaxf', 'fmaxl', 'fmin', 'fminf', 'fminl', 'fmaf','fmal', 'isgreater',
'isgreaterequal', 'isless', 'islessequal', 'islessgreater',
'isunordered',
],
Expand All @@ -284,11 +311,11 @@ def rawlink(rawtoken):
'UINTMAX_MAX', 'PTRDIFF_MIN', 'PTRDIFF_MAX', 'SIG_ATOMIC_MIN',
'SIG_ATOMIC_MAX', 'SIZE_MAX', 'WCHAR_MIN', 'WCHAR_MAX', 'WINT_MIN',
'WINT_MAX', 'INTN_C', 'UINTN_C', 'INTMAX_C', 'UINTMAX_C',
] + STDINT_TYPES,
] + STDINT_TYPES + STDINT_H_DEFINES_MIN + STDINT_H_DEFINES_MAX + STDINT_H_DEFINES_C,
# B.18 Input/output
'stdio.h': C90_STDLIB_IDENTIFIERS['stdio.h'] + [
'mode', 'restrict', 'snprintf', 'vfscanf', 'vscanf',
'vsnprintf', 'vsscanf',
'vsnprintf', 'vsscanf','ftell'
],
# B.19 General utilities
'stdlib.h': C90_STDLIB_IDENTIFIERS['stdlib.h'] + [
Expand Down Expand Up @@ -317,22 +344,148 @@ def rawlink(rawtoken):
'vfwprintf', 'vfwscanf', 'vswprintf', 'vswscanf', 'vwprintf',
'vwscanf', 'wprintf', 'wscanf', 'fgetwc', 'fgetws', 'fputwc', 'fputws',
'fwide', 'getwc', 'getwchar', 'putwc', 'putwchar', 'ungetwc', 'wcstod',
'wcstof', 'double', 'int', 'long', 'long', 'long', 'wcscpy', 'wcsncpy',
'wmemcpy', 'wmemmove', 'wcscat', 'wcsncat', 'wcscmp', 'wcscoll',
'wcstof', 'wcstold', 'wcstol', 'wcstoll', 'wcstoul', 'wcstoull', 'wcscpy',
'wcsncpy', 'wmemcpy', 'wmemmove', 'wcscat', 'wcsncat', 'wcscmp', 'wcscoll',
'wcsncmp', 'wcsxfrm', 'wmemcmp', 'wcschr', 'wcscspn', 'wcspbrk',
'wcsrchr', 'wcsspn', 'wcsstr', 'wcstok', 'wmemchr', 'wcslen',
'wmemset', 'wcsftime', 'btowc', 'wctob', 'mbsinit', 'mbrlen',
'mbrtowc', 'wcrtomb', 'mbsrtowcs', 'wcsrtombs',
],
# B.24 Wide character classification and mapping utilities
'wctype.h': ['wint_t', 'wctrans_t', 'wctype_t', 'WEOF',
'iswalnum', 'iswalpha', 'iswblank', 'iswcntrl', 'iswdigit',
'iswgraph', 'iswlower', 'iswprint', 'iswpunct', 'iswspace', 'iswupper',
'iswxdigit', 'iswctype', 'wctype', 'towlower', 'towupper', 'towctrans',
'wctrans'],
}

# Identifiers described in Section 7 "Library" of C11 Standard
# Based on ISO/IEC 9899:201x N1570 (Draft 12.04.2011) Annex B -- Library summary
# (https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf)
C11_STDLIB_IDENTIFIERS = {
# B.1 Diagnostics
'assert.h': C99_STDLIB_IDENTIFIERS['assert.h']+ ['static_assert'],
# B.2 Complex
'complex.h': C99_STDLIB_IDENTIFIERS['complex.h']+['__STDC_NO_COMPLEX__','CMPLX','CMPLXF','CMPLXL'],
# B.3 Character handling
'ctype.h': C99_STDLIB_IDENTIFIERS['ctype.h'],
# B.4 Errors
'errno.h': C99_STDLIB_IDENTIFIERS['errno.h']+['__STDC_WANT_LIB_EXT1__', 'errno_t'],
# B.5 Floating-point environment
'fenv.h': C99_STDLIB_IDENTIFIERS['fenv.h'],
# B.6 Characteristics of floating types
'float.h': C99_STDLIB_IDENTIFIERS['float.h']+[
'FLT_HAS_SUBNORM','DBL_HAS_SUBNORM','LDBL_HAS_SUBNORM',
'FLT_DECIMAL_DIG','DBL_DECIMAL_DIG','LDBL_DECIMAL_DIG',
'FLT_TRUE_MIN','DBL_TRUE_MIN','LDBL_TRUE_MIN'],
# B.7 Format conversion of integer types
'inttypes.h': C99_STDLIB_IDENTIFIERS["inttypes.h"],
# B.8 Alternative spellings
'iso646.h': C99_STDLIB_IDENTIFIERS["iso646.h"],
# B.9 Size of integer types
'limits.h': C99_STDLIB_IDENTIFIERS['limits.h'],
# B.10 Localization
'locale.h': C99_STDLIB_IDENTIFIERS['locale.h'],
# B.11 Mathematics
'math.h': C99_STDLIB_IDENTIFIERS['math.h'],
# B.12 Nonlocal jumps
'setjmp.h': C99_STDLIB_IDENTIFIERS['setjmp.h'],
# B.13 Signal handling
'signal.h': C99_STDLIB_IDENTIFIERS['signal.h'],
# B.14 Alignment
'stdalign.h': ['alignas','__alignas_is_defined'],
# B.15 Variable arguments
'stdarg.h': C99_STDLIB_IDENTIFIERS['stdarg.h'],
# B.16 Atomics
'stdatomic.h': ['ATOMIC_BOOL_LOCK_FREE', 'ATOMIC_CHAR_LOCK_FREE',
'ATOMIC_CHAR16_T_LOCK_FREE', 'ATOMIC_CHAR32_T_LOCK_FREE', 'ATOMIC_WCHAR_T_LOCK_FREE',
'ATOMIC_SHORT_LOCK_FREE', 'ATOMIC_INT_LOCK_FREE', 'ATOMIC_LONG_LOCK_FREE',
'ATOMIC_LLONG_LOCK_FREE', 'ATOMIC_POINTER_LOCK_FREE', 'ATOMIC_FLAG_INIT',
'memory_order', 'atomic_flag', 'memory_order_relaxed', 'memory_order_consume',
'memory_order_acquire', 'memory_order_release', 'memory_order_acq_rel', 'memory_order_seq_cst',
'atomic_bool', 'atomic_char', 'atomic_schar', 'atomic_uchar', 'atomic_short', 'atomic_ushort',
'atomic_int', 'atomic_uint', 'atomic_long', 'atomic_ulong', 'atomic_llong', 'atomic_ullong',
'atomic_char16_t', 'atomic_char32_t', 'atomic_wchar_t', 'atomic_int_least8_t',
'atomic_uint_least8_t', 'atomic_int_least16_t', 'atomic_uint_least16_t',
'atomic_int_least32_t', 'atomic_uint_least32_t', 'atomic_int_least64_t',
'atomic_uint_least64_t', 'atomic_int_fast8_t', 'atomic_uint_fast8_t',
'atomic_int_fast16_t', 'atomic_uint_fast16_t', 'atomic_int_fast32_t',
'atomic_uint_fast32_t', 'atomic_int_fast64_t', 'atomic_uint_fast64_t',
'atomic_intptr_t', 'atomic_uintptr_t', 'atomic_size_t', 'atomic_ptrdiff_t',
'atomic_intmax_t', 'atomic_uintmax_t', 'ATOMIC_VAR_INIT', 'type kill_dependency',
'atomic_thread_fence', 'atomic_signal_fence', 'atomic_is_lock_free',
'atomic_store', 'atomic_store_explicit', 'atomic_load', 'atomic_load_explicit',
'atomic_exchange', 'atomic_exchange_explicit', 'atomic_compare_exchange_strong',
'atomic_compare_exchange_strong_explicit', 'atomic_compare_exchange_weak',
'atomic_compare_exchange_weak_explicit', 'atomic_fetch_key', 'atomic_fetch_key_explicit',
'atomic_flag_test_and_set', 'atomic_flag_test_and_set_explicit',
'atomic_flag_clear', 'atomic_flag_clear_explicit', ],
# B.17 Boolean type and values
'stdbool.h': C99_STDLIB_IDENTIFIERS['stdbool.h'],
# B.18 Common definitions
'stddef.h': C99_STDLIB_IDENTIFIERS['stddef.h'] +
['max_align_t','__STDC_WANT_LIB_EXT1__', 'rsize_t'],
# B.19 Integer types
'stdint.h': C99_STDLIB_IDENTIFIERS['stdint.h']+
['__STDC_WANT_LIB_EXT1__', 'RSIZE_MAX'],
# B.20 Input/output
'stdio.h': C99_STDLIB_IDENTIFIERS['stdio.h'] +
['__STDC_WANT_LIB_EXT1__', 'L_tmpnam_s', 'TMP_MAX_S', 'errno_t', 'rsize_t',
'tmpfile_s', 'tmpnam_s', 'fopen_s', 'freopen_s', 'fprintf_s', 'fscanf_s',
'printf_s','scanf_s','snprintf_s','sprintf_s','sscanf_s','vfprintf_s',
'vfscanf_s', 'vsprintf_s', 'vsscanf_s', 'gets_s'
],
# B.21 General utilities
'stdlib.h': C99_STDLIB_IDENTIFIERS['stdlib.h'] +
['constraint_handler_t', 'set_constraint_handler_s', 'abort_handler_s',
'ignore_handler_s', 'getenv_s', 'bsearch_s', 'qsort_s', 'wctomb_s',
'mbstowcs_s', 'wcstombs_s'],
# B.22 Noretrun
'stdnoreturn.h': ['noreturn'],
# B.23 String handling
'string.h': C99_STDLIB_IDENTIFIERS['string.h'] +
['memcpy_s', 'memmoce_s', 'strcpy_s', 'strncpy_s','strcat_s',
'strtok_s', 'memset_s', 'strerror_s', 'strerrorlen_s', 'strnlen_s'],
# B.24 Type-generic math
'tgmath.h': C99_STDLIB_IDENTIFIERS['tgmath.h'],
# B.25 Threads
'threads.h': ['thread_local', 'ONCE_FLAG_INIT', 'TSS_DTOR_ITERATIONS',
'cnd_t', 'thrd_t', 'tss_t', 'mtx_t', 'tss_dtor_t', 'thrd_start_t',
'once_flag', 'mtx_plain', 'mtx_recursive', 'mtx_timed', 'thrd_timedout',
'thrd_success', 'thrd_busy', 'thrd_error', 'thrd_nomem', 'call_once',
'cnd_broadcast', 'cnd_destroy','cnd_init', 'cnd_signal', 'cnd_timedwait',
'cnd_wait','mtx_destroy', 'mtx_init', 'mtx_lock', 'mtx_timedlock',
'mtx_trylock', 'mtx_unlock', 'thrd_create', 'thrd_current',
'thrd_detach', 'thrd_equal', 'thrd_exit', 'thrd_join', 'thrd_sleep',
'thrd_yield', 'tss_create', 'tss_delete', 'tss_get', 'tss_set' ],
# B.26 Date and time
'time.h': C99_STDLIB_IDENTIFIERS['time.h'] + [
'asctime_s', 'ctime_s', 'gmtime_s', 'localtime_s'
],
# B.27 Unicode utilities
'uchar.h': ['mbstate_t', 'size_t', 'char16_t', 'char32_t',
'mbrtoc16', 'c16rtomb', 'mbrtoc32', 'c32rtomb'
],
# B.28 Extended multibyte/wide character utilities
'wchar.h': C99_STDLIB_IDENTIFIERS["wchar.h"]+[
'fwprintf_s', 'fwscanf_s', 'snwprintf_s', 'swprintf_s', 'swscanf_s',
'vfwprintf_s', 'vfwscanf_s', 'vsnwprintf_s', 'vswprintf_s', 'vswscanf_s',
'vwprintf_s', 'vwscanf_s', 'wprintf_s', 'wscanf_s', 'wcscpy_s', 'wcsncpy_s',
'wmemcpy_s', 'wmemmove_s', 'wcscat_s', 'wcsncat_s', 'wcstok_s', 'wcsnlen_s',
'wcrtomb_s', 'mbsrtowcs_s', 'wcsrtombs_s',
],
# B.29 Wide character classification and mapping utilities
'wctype.h': C99_STDLIB_IDENTIFIERS['wctype.h'],
}

def isStdLibId(id_, standard='c99'):
id_lists = []
if standard == 'c89':
id_lists = C90_STDLIB_IDENTIFIERS.values()
elif standard in ('c99', 'c11'):
elif standard == 'c99':
id_lists = C99_STDLIB_IDENTIFIERS.values()
else:
id_lists = C11_STDLIB_IDENTIFIERS.values()
for l in id_lists:
if id_ in l:
return True
Expand All @@ -349,16 +502,23 @@ def isStdLibId(id_, standard='c99'):
}


# Reserved keywords defined in ISO/IEC 9899 WF14/N1256 -- ch. 6.4.1
# Reserved keywords defined in Section 6.4.1 "Language" of C99 Standard
# Based on ISO/IEC 9899:1999 (E) 6.4.1 Keywords
# Adding the expanding macros from Section 7 too
# (https://www.dii.uchile.cl/~daespino/files/Iso_C_1999_definition.pdf)
C99_ADDED_KEYWORDS = {
'inline', 'restrict', '_Bool', '_Complex', '_Imaginary',
'bool', 'complex', 'imaginary'
}

# Reserved keywords defined in Section 6.4.1 "Language" of C11 Standard
# Based on ISO/IEC 9899:201x N1570 (Draft 12.04.2011) 6.4.1 Keywords
# Adding the expanding macros from Section 7 too
# (https://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf)
C11_ADDED_KEYWORDS = {
'_Alignas', '_Alignof', '_Atomic', '_Generic', '_Noreturn',
'_Statis_assert', '_Thread_local' ,
'alignas', 'alignof', 'noreturn', 'static_assert'
'_Static_assert', '_Thread_local' ,
'alignas', 'alignof', 'noreturn', 'static_assert','thread_local'
}

def isKeyword(keyword, standard='c99'):
Expand Down Expand Up @@ -1547,7 +1707,7 @@ def misra_1_4(self, cfg):
for token in cfg.tokenlist:
if token.str in ('_Atomic', '_Noreturn', '_Generic', '_Thread_local', '_Alignas', '_Alignof'):
self.reportError(token, 1, 4)
if token.str.endswith('_s') and isFunctionCall(token.next):
if token.str.endswith('_s') and isFunctionCall(token.next, cfg.standards.c):
# See C specification C11 - Annex K, page 578
if token.str in ('tmpfile_s', 'tmpnam_s', 'fopen_s', 'freopen_s', 'fprintf_s', 'fscanf_s', 'printf_s', 'scanf_s',
'snprintf_s', 'sprintf_s', 'sscanf_s', 'vfprintf_s', 'vfscanf_s', 'vprintf_s', 'vscanf_s',
Expand Down Expand Up @@ -1942,7 +2102,7 @@ def reportErrorIfVariableIsNotConst(variable, stringLiteral):
self.reportError(token, 7, 4)

# Check use as function parameter
if isFunctionCall(token) and token.astOperand1 and token.astOperand1.function:
if isFunctionCall(token, data.standards.c) and token.astOperand1 and token.astOperand1.function:
functionDeclaration = token.astOperand1.function

if functionDeclaration.tokenDef:
Expand Down Expand Up @@ -3269,7 +3429,7 @@ def misra_16_7(self, data):

def misra_17_1(self, data):
for token in data.tokenlist:
if isFunctionCall(token) and token.astOperand1.str in (
if isFunctionCall(token, data.standards.c) and token.astOperand1.str in (
'va_list', 'va_arg', 'va_start', 'va_end', 'va_copy'):
self.reportError(token, 17, 1)
elif token.str == 'va_list':
Expand Down Expand Up @@ -3338,7 +3498,7 @@ def misra_17_3(self, cfg):
end_token = token.next.link
while tok != end_token:
if tok.isName and tok.function is None and tok.valueType is None and tok.next.str == "(" and \
tok.next.valueType is None and not isKeyword(tok.str) and not isStdLibId(tok.str):
tok.next.valueType is None and not isKeyword(tok.str, cfg.standards.c) and not isStdLibId(tok.str, cfg.standards.c):
self.reportError(tok, 17, 3)
break
tok = tok.next
Expand Down Expand Up @@ -3391,7 +3551,7 @@ def misra_config(self, data):
continue
if tok.next.str == "(" or tok.str in ["EOF"]:
continue
if isKeyword(tok.str) or isStdLibId(tok.str):
if isKeyword(tok.str, data.standards.c) or isStdLibId(tok.str, data.standards.c):
continue
if tok.astParent is None:
continue
Expand Down Expand Up @@ -3656,7 +3816,7 @@ def misra_20_9(self, cfg):
break
for s in cond.E.split(' '):
if (s[0] >= 'A' and s[0] <= 'Z') or (s[0] >= 'a' and s[0] <= 'z'):
if isKeyword(s):
if isKeyword(s, cfg.standards.c):
continue
if s in defined:
continue
Expand Down Expand Up @@ -3790,7 +3950,7 @@ def misra_21_2(self, cfg):

def misra_21_3(self, data):
for token in data.tokenlist:
if isFunctionCall(token) and (token.astOperand1.str in ('malloc', 'calloc', 'realloc', 'free')):
if isFunctionCall(token, data.standards.c) and (token.astOperand1.str in ('malloc', 'calloc', 'realloc', 'free')):
self.reportError(token, 21, 3)

def misra_21_4(self, data):
Expand All @@ -3813,12 +3973,12 @@ def misra_21_6(self, data):

def misra_21_7(self, data):
for token in data.tokenlist:
if isFunctionCall(token) and (token.astOperand1.str in ('atof', 'atoi', 'atol', 'atoll')):
if isFunctionCall(token, data.standards.c) and (token.astOperand1.str in ('atof', 'atoi', 'atol', 'atoll')):
self.reportError(token, 21, 7)

def misra_21_8(self, data):
for token in data.tokenlist:
if isFunctionCall(token) and (token.astOperand1.str in ('abort', 'exit', 'getenv')):
if isFunctionCall(token, data.standards.c) and (token.astOperand1.str in ('abort', 'exit', 'getenv')):
self.reportError(token, 21, 8)

def misra_21_9(self, data):
Expand All @@ -3845,7 +4005,7 @@ def misra_21_12(self, data):
for token in data.tokenlist:
if token.str == 'fexcept_t' and token.isName:
self.reportError(token, 21, 12)
if isFunctionCall(token) and (token.astOperand1.str in (
if isFunctionCall(token, data.standards.c) and (token.astOperand1.str in (
'feclearexcept',
'fegetexceptflag',
'feraiseexcept',
Expand All @@ -3857,7 +4017,7 @@ def misra_21_14(self, data):
# buffers used in strcpy/strlen/etc function calls
string_buffers = []
for token in data.tokenlist:
if token.str[0] == 's' and isFunctionCall(token.next):
if token.str[0] == 's' and isFunctionCall(token.next, data.standards.c):
name, args = cppcheckdata.get_function_call_name_args(token)
if name is None:
continue
Expand Down
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