[previous] 0647 [next] [L] Number of enumeration constants exceeds 127 - program does not conform strictly to ISO:C90.
ISO C90 Conformance limits REFERENCE - ISO:C90-5.2.4.1 Translation Limits

The translation limits specified in the ISO:C Standard define a minimum set of conditions which a compiler must support in order to be described as conforming. In practice, compilers will often tolerate code which exceeds these minimal requirements. However, in order to ensure portability, it is advisable to avoid writing code that assumes a level of compiler capability which may not always be supported.

Message 0647 identifies an enumeration declaration containing more than 127 enumeration constants, the minimum requirement of the ISO:C90 Standard. Message 0391 identifies code which breaches the corresponding ISO:C99 limit, i.e. 1023 constants. These messages are not identifying incorrect code but they do identify code which is described in the respective standard as not strictly conforming.

For example: 


/*PRQA S 553,2017,2211,3602 ++*/

enum ENUMB {
 b0001, b0002, b0003, b0004, b0005, b0006, b0007, b0008, b0009, b0010,
 b0011, b0012, b0013, b0014, b0015, b0016, b0017, b0018, b0019, b0020,
 b0021, b0022, b0023, b0024, b0025, b0026, b0027, b0028, b0029, b0030,
 b0031, b0032, b0033, b0034, b0035, b0036, b0037, b0038, b0039, b0040,
 b0041, b0042, b0043, b0044, b0045, b0046, b0047, b0048, b0049, b0050,
 b0051, b0052, b0053, b0054, b0055, b0056, b0057, b0058, b0059, b0060,
 b0061, b0062, b0063, b0064, b0065, b0066, b0067, b0068, b0069, b0070,
 b0071, b0072, b0073, b0074, b0075, b0076, b0077, b0078, b0079, b0080,
 b0081, b0082, b0083, b0084, b0085, b0086, b0087, b0088, b0089, b0090,
 b0091, b0092, b0093, b0094, b0095, b0096, b0097, b0098, b0099, b0100,

 b0101, b0102, b0103, b0104, b0105, b0106, b0107, b0108, b0109, b0110,
 b0111, b0112, b0113, b0114, b0115, b0116, b0117, b0118, b0119, b0120,
 b0121, b0122, b0123, b0124, b0125, b0126,
 b0127,
 b0128                                                                  /* Message 0647 */
};


enum ENUMG {
 g0001, g0002, g0003, g0004, g0005, g0006, g0007, g0008, g0009, g0010,
 g0011, g0012, g0013, g0014, g0015, g0016, g0017, g0018, g0019, g0020,
 g0021, g0022, g0023, g0024, g0025, g0026, g0027, g0028, g0029, g0030,
 g0031, g0032, g0033, g0034, g0035, g0036, g0037, g0038, g0039, g0040,
 g0041, g0042, g0043, g0044, g0045, g0046, g0047, g0048, g0049, g0050,
 g0051, g0052, g0053, g0054, g0055, g0056, g0057, g0058, g0059, g0060,
 g0061, g0062, g0063, g0064, g0065, g0066, g0067, g0068, g0069, g0070,
 g0071, g0072, g0073, g0074, g0075, g0076, g0077, g0078, g0079, g0080,
 g0081, g0082, g0083, g0084, g0085, g0086, g0087, g0088, g0089, g0090,
 g0091, g0092, g0093, g0094, g0095, g0096, g0097, g0098, g0099, g0100,

 g0101, g0102, g0103, g0104, g0105, g0106, g0107, g0108, g0109, g0110,
 g0111, g0112, g0113, g0114, g0115, g0116, g0117, g0118, g0119, g0120,
 g0121, g0122, g0123, g0124, g0125, g0126, g0127, g0128, g0129, g0130,
 g0131, g0132, g0133, g0134, g0135, g0136, g0137, g0138, g0139, g0140,
 g0141, g0142, g0143, g0144, g0145, g0146, g0147, g0148, g0149, g0150,
 g0151, g0152, g0153, g0154, g0155, g0156, g0157, g0158, g0159, g0160,
 g0161, g0162, g0163, g0164, g0165, g0166, g0167, g0168, g0169, g0170,
 g0171, g0172, g0173, g0174, g0175, g0176, g0177, g0178, g0179, g0180,
 g0181, g0182, g0183, g0184, g0185, g0186, g0187, g0188, g0189, g0190,
 g0191, g0192, g0193, g0194, g0195, g0196, g0197, g0198, g0199, g0200,

 g0201, g0202, g0203, g0204, g0205, g0206, g0207, g0208, g0209, g0210,
 g0211, g0212, g0213, g0214, g0215, g0216, g0217, g0218, g0219, g0220,
 g0221, g0222, g0223, g0224, g0225, g0226, g0227, g0228, g0229, g0230,
 g0231, g0232, g0233, g0234, g0235, g0236, g0237, g0238, g0239, g0240,
 g0241, g0242, g0243, g0244, g0245, g0246, g0247, g0248, g0249, g0250,
 g0251, g0252, g0253, g0254, g0255, g0256, g0257, g0258, g0259, g0260,
 g0261, g0262, g0263, g0264, g0265, g0266, g0267, g0268, g0269, g0270,
 g0271, g0272, g0273, g0274, g0275, g0276, g0277, g0278, g0279, g0280,
 g0281, g0282, g0283, g0284, g0285, g0286, g0287, g0288, g0289, g0290,
 g0291, g0292, g0293, g0294, g0295, g0296, g0297, g0298, g0299, g0300,

 g0301, g0302, g0303, g0304, g0305, g0306, g0307, g0308, g0309, g0310,
 g0311, g0312, g0313, g0314, g0315, g0316, g0317, g0318, g0319, g0320,
 g0321, g0322, g0323, g0324, g0325, g0326, g0327, g0328, g0329, g0330,
 g0331, g0332, g0333, g0334, g0335, g0336, g0337, g0338, g0339, g0340,
 g0341, g0342, g0343, g0344, g0345, g0346, g0347, g0348, g0349, g0350,
 g0351, g0352, g0353, g0354, g0355, g0356, g0357, g0358, g0359, g0360,
 g0361, g0362, g0363, g0364, g0365, g0366, g0367, g0368, g0369, g0370,
 g0371, g0372, g0373, g0374, g0375, g0376, g0377, g0378, g0379, g0380,
 g0381, g0382, g0383, g0384, g0385, g0386, g0387, g0388, g0389, g0390,
 g0391, g0392, g0393, g0394, g0395, g0396, g0397, g0398, g0399, g0400,

 g0401, g0402, g0403, g0404, g0405, g0406, g0407, g0408, g0409, g0410,
 g0411, g0412, g0413, g0414, g0415, g0416, g0417, g0418, g0419, g0420,
 g0421, g0422, g0423, g0424, g0425, g0426, g0427, g0428, g0429, g0430,
 g0431, g0432, g0433, g0434, g0435, g0436, g0437, g0438, g0439, g0440,
 g0441, g0442, g0443, g0444, g0445, g0446, g0447, g0448, g0449, g0450,
 g0451, g0452, g0453, g0454, g0455, g0456, g0457, g0458, g0459, g0460,
 g0461, g0462, g0463, g0464, g0465, g0466, g0467, g0468, g0469, g0470,
 g0471, g0472, g0473, g0474, g0475, g0476, g0477, g0478, g0479, g0480,
 g0481, g0482, g0483, g0484, g0485, g0486, g0487, g0488, g0489, g0490,
 g0491, g0492, g0493, g0494, g0495, g0496, g0497, g0498, g0499, g0500,

 g0501, g0502, g0503, g0504, g0505, g0506, g0507, g0508, g0509, g0510,
 g0511, g0512, g0513, g0514, g0515, g0516, g0517, g0518, g0519, g0520,
 g0521, g0522, g0523, g0524, g0525, g0526, g0527, g0528, g0529, g0530,
 g0531, g0532, g0533, g0534, g0535, g0536, g0537, g0538, g0539, g0540,
 g0541, g0542, g0543, g0544, g0545, g0546, g0547, g0548, g0549, g0550,
 g0551, g0552, g0553, g0554, g0555, g0556, g0557, g0558, g0559, g0560,
 g0561, g0562, g0563, g0564, g0565, g0566, g0567, g0568, g0569, g0570,
 g0571, g0572, g0573, g0574, g0575, g0576, g0577, g0578, g0579, g0580,
 g0581, g0582, g0583, g0584, g0585, g0586, g0587, g0588, g0589, g0590,
 g0591, g0592, g0593, g0594, g0595, g0596, g0597, g0598, g0599, g0600,

 g0601, g0602, g0603, g0604, g0605, g0606, g0607, g0608, g0609, g0610,
 g0611, g0612, g0613, g0614, g0615, g0616, g0617, g0618, g0619, g0620,
 g0621, g0622, g0623, g0624, g0625, g0626, g0627, g0628, g0629, g0630,
 g0631, g0632, g0633, g0634, g0635, g0636, g0637, g0638, g0639, g0640,
 g0641, g0642, g0643, g0644, g0645, g0646, g0647, g0648, g0649, g0650,
 g0651, g0652, g0653, g0654, g0655, g0656, g0657, g0658, g0659, g0660,
 g0661, g0662, g0663, g0664, g0665, g0666, g0667, g0668, g0669, g0670,
 g0671, g0672, g0673, g0674, g0675, g0676, g0677, g0678, g0679, g0680,
 g0681, g0682, g0683, g0684, g0685, g0686, g0687, g0688, g0689, g0690,
 g0691, g0692, g0693, g0694, g0695, g0696, g0697, g0698, g0699, g0700,

 g0701, g0702, g0703, g0704, g0705, g0706, g0707, g0708, g0709, g0710,
 g0711, g0712, g0713, g0714, g0715, g0716, g0717, g0718, g0719, g0720,
 g0721, g0722, g0723, g0724, g0725, g0726, g0727, g0728, g0729, g0730,
 g0731, g0732, g0733, g0734, g0735, g0736, g0737, g0738, g0739, g0740,
 g0741, g0742, g0743, g0744, g0745, g0746, g0747, g0748, g0749, g0750,
 g0751, g0752, g0753, g0754, g0755, g0756, g0757, g0758, g0759, g0760,
 g0761, g0762, g0763, g0764, g0765, g0766, g0767, g0768, g0769, g0770,
 g0771, g0772, g0773, g0774, g0775, g0776, g0777, g0778, g0779, g0780,
 g0781, g0782, g0783, g0784, g0785, g0786, g0787, g0788, g0789, g0790,
 g0791, g0792, g0793, g0794, g0795, g0796, g0797, g0798, g0799, g0800,

 g0801, g0802, g0803, g0804, g0805, g0806, g0807, g0808, g0809, g0810,
 g0811, g0812, g0813, g0814, g0815, g0816, g0817, g0818, g0819, g0820,
 g0821, g0822, g0823, g0824, g0825, g0826, g0827, g0828, g0829, g0830,
 g0831, g0832, g0833, g0834, g0835, g0836, g0837, g0838, g0839, g0840,
 g0841, g0842, g0843, g0844, g0845, g0846, g0847, g0848, g0849, g0850,
 g0851, g0852, g0853, g0854, g0855, g0856, g0857, g0858, g0859, g0860,
 g0861, g0862, g0863, g0864, g0865, g0866, g0867, g0868, g0869, g0870,
 g0871, g0872, g0873, g0874, g0875, g0876, g0877, g0878, g0879, g0880,
 g0881, g0882, g0883, g0884, g0885, g0886, g0887, g0888, g0889, g0890,
 g0891, g0892, g0893, g0894, g0895, g0896, g0897, g0898, g0899, g0900,

 g0901, g0902, g0903, g0904, g0905, g0906, g0907, g0908, g0909, g0910,
 g0911, g0912, g0913, g0914, g0915, g0916, g0917, g0918, g0919, g0920,
 g0921, g0922, g0923, g0924, g0925, g0926, g0927, g0928, g0929, g0930,
 g0931, g0932, g0933, g0934, g0935, g0936, g0937, g0938, g0939, g0940,
 g0941, g0942, g0943, g0944, g0945, g0946, g0947, g0948, g0949, g0950,
 g0951, g0952, g0953, g0954, g0955, g0956, g0957, g0958, g0959, g0960,
 g0961, g0962, g0963, g0964, g0965, g0966, g0967, g0968, g0969, g0970,
 g0971, g0972, g0973, g0974, g0975, g0976, g0977, g0978, g0979, g0980,
 g0981, g0982, g0983, g0984, g0985, g0986, g0987, g0988, g0989, g0990,
 g0991, g0992, g0993, g0994, g0995, g0996, g0997, g0998, g0999, g1000,

 g1001, g1002, g1003, g1004, g1005, g1006, g1007, g1008, g1009, g1010,
 g1011, g1012, g1013, g1014, g1015, g1016, g1017, g1018, g1019, g1020,
 g1021,
 g1022,
 g1023,
 g1024                                                                  /* Message 0647 and 0391 */
};

MISRA-C:2004 Rules applicable to message 0647:

Rule  1.1  (Required) All code shall conform to ISO/IEC 9899:1990 C programming language, ISO 9899, amended and corrected by ISO/IEC 9899/COR1:1995, ISO/IEC 9899/AMD1:1995, and ISO/IEC 9899/COR2: 1996192

See also:

QA·C Source Code Analyser 8.1
MISRA-C:2004 Compliance Module 3.2
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