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

Generated by: LCOV version 1.16