Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30831-19b50a36d0) Lines: 2553 2925 87.3 %
Date: 2026-04-22 09:25:48 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2068
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3955
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6541
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8174
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9646
Flx_mulspec_mulii 10140
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19963
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27502
Flx_composedsum 27696
FlxV_composedsum 28987
Flx_mod_Xn1 31627
FlxV_Flc_mul 34482
Fl_Flxq_log 35576
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47245
Flv_inv_indir 52214
kron_pack_Flx_spec 53168
Flx_Newton 54394
Flx_invLaplace 54686
Flxn_div 56620
Flxn_div_pre 56642
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69417
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75991
Fl2_sqrtn_pre 76029
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86554
Flx_Frobenius 86618
Flx_mulspec_quartmulii 97166
Flxq_order 97322
Flxq_autsum_pre 98574
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 104892
int_to_Flx_quart 107385
Flxn_expint 109546
Flx_fromNewton 109548
Flxq_autsum_mul 112095
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113771
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118842
Flx_extgcd_halfgcd 126086
Flx_is_smooth_squarefree 126969
Flx_invBarrett_basecase 134412
Flx_splitting 147612
Flx_Fl_sub 151685
Flv_invVandermonde 153445
Flx_invBarrett_pre 158872
Flx_inflate 160553
Flxq_log 164210
Flxq_matrix_pow_pre 170641
FlxV_to_Flm 171864
Fl2_inv_pre 197175
Flx_to_int_quartspec 204551
Flxq_sumautsum_pre 210695
Flxn_recip 218090
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232130
FlxqC_red_pre 234855
get_Flxq_star 283433
Flx_mulspec_mulii_inflate 294051
Flxq_sumautsum_sqr 295218
FlxT_red 296705
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
FlxC_eval_powers_pre 325154
Flxq_inv 335786
Flx_addmulmul 359022
_Flxq_neg 366572
Flx_sqr 370289
_Flxq_add 389834
bounded_order 393991
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421312
Flx_integXn 423355
Flxq_norm 443246
Fl2_equal1 449600
Flx_to_int_halfspec 468590
Flxq_powu 488362
int_to_Flx_half 507058
Flxq_easylog 519442
Flxn_mulhigh 527719
Flx_blocks 527786
Flx_triple 551294
Flx_eval2BILspec 603305
Flx_divrem_Barrett 605305
FlxV_to_ZXV 609499
Flxq_auttrace_sqr 652369
Flx_diff1 660439
Flx_translate1 663104
Flx_sqrspec_Kronecker 670312
Flxq_invsafe 670364
_Fl2_pow 671279
Fl2_pow_pre 671293
Flx_translate1_basecase 675183
kron_pack_Flx_spec_half 688104
translate_basecase 688361
Flxq_auttrace_mul 779608
Flx_Flxq_eval 791459
Flxq_minpoly_pre 809733
Flv_roots_to_pol 842195
Flx_extgcd 857830
Flx_halfgcd_pre 873185
Flx_subspec 898756
Flx_divrem_Barrettspec 906347
Flxq_pow 933124
monomial_Flx 941320
Flx_mulhigh_i 950191
Flxq_auttrace_pre 960243
Flx_halfgcd_all_i 1088162
Flx_halfgcd_all_pre 1088163
Flx_halfres_basecase 1095238
Flx_halfres_i 1115208
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485459
_Flxq_red 1550928
Rg_to_F2 1715172
Flv_inv 1744734
Flv_producttree 1745947
Flxq_transmul_init 1746327
Flv_inv_i 1756737
Flx_Flv_multieval_tree 1786243
Flx_neg_inplace 1799550
Flx_red 1883624
_Fl2_mul 1922750
Flx_lgrenormalizespec 2134918
RgX_to_Flx 2209598
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444841
FlvV_polint_tree 2587941
random_Flx 2646230
Flxq_sqr 2763478
FlxV_to_ZXV_inplace 3032560
Rg_to_Flxq 3461397
Flx_addshift 3768149
ZXT_to_FlxT 3798550
Flx_neg 4176131
Flx_negspec 4176135
Flxq_inv_pre 4183775
Flxq_transmul 4212343
Flx_val 4466029
Flx_resultant 4609544
Fl2_sqr_pre 4906295
_Fl2_sqr 4906295
Flx_mod_Xnm1 4908054
Flxn_mul_pre 5184191
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326683
kron_unpack_Flx_bits_narrow 5625435
kron_unpack_Flx_bits_wide 5697714
Flx_extgcd_pre 6184485
Flx_extgcd_basecase 6184513
Flxn_red 6368844
zx_to_Flx 6397024
Flx_recipspec 7288729
Flx_addspec 7337710
Flx_mulspec_Kronecker 7370432
Z_to_Flx 7593719
maxbitcoeffpol 8475218
Flx_is_squarefree 9207485
Flx_Fl_mul 9423435
Flx_Fl_add 9843739
_Flx_mul 11784495
Flx_Fl_mul_to_monic 11859070
Flx_blocks_Flm 12970349
FlxV_to_Flm_lg 12971279
Flx_FlxqV_eval_pre 13169735
Flx_Frobenius_pre 13817978
Flx_resultant_basecase_pre 14474937
Flx_resultant_pre 14477180
Flx_get_red 14506480
Fl2_mul_pre 17091105
Flxq_mul 18079969
Flv_inv_pre_inplace 19316535
Flx_Fl_mul_pre 20198869
Flx_eval 20390047
kron_pack_Flx_spec_bits 21004378
Flv_inv_pre_indir 21044224
Fl_to_Flx 21936114
_Flxq_pow 22261631
Flxq_pow_Frobenius 22269042
_Flxq_one 22439090
Flxq_powers_pre 22440501
Flx_deriv 22891117
_Flxq_powu_i 22927648
Flxq_pow_pre 23317571
Flxq_powu_pre 24180930
Flv_to_Flx 25489961
Flx_equal 26085479
Flx_mul 26722297
Flx_shift 27403812
mkF2 27660805
Flx_valrem 28456966
Flx_divrem 30449482
Flx_gcd 35032364
Flx_to_ZX_inplace 36544925
Flx_div_by_X_x 36572826
Flx_to_ZX 38383646
Flx_rem 42202489
Flx_eval_powers_pre 48496365
Flx_divrem_basecase 61242172
Flx_normalize 64805462
Flx_to_Flv 66649165
set_Flxq_pre 69233948
Rg_to_Fl 73085507
Flx_add 73810152
Flx_divrem_pre 78672205
Flx_gcd_basecase 85786204
Flx_gcd_pre 87458084
Flx_get_red_pre 96983343
Fl2_norm_pre 97118552
Flx_eval_pre 136113139
Flx_sub 136571935
_Flxq_mul 146555194
ZX_to_Flx 171045253
Flxq_mul_pre 190981758
_Flxq_sqr 266413567
Flxq_sqr_pre 272602586
Flx_sqr_pre 273575126
Flx_sqrspec 273919605
Flx_sqrspec_basecase 274016993
Flx_mulspec_basecase 346323918
Flx_mul_pre 380272218
Flx_mulspec 385964107
Flx_shiftip 628780637
Flx_rem_basecase 796846125
Flx_rem_pre 922601181
get_Flx_red 985562952
Flx_mullimb 1185077230
Flx_renormalize 2162444251
get_Fl_threshold 2313851215
Flx_mullimb_ok 3346138407

Generated by: LCOV version 1.16