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 30835-e55edf4b45) Lines: 2553 2925 87.3 %
Date: 2026-04-25 09:26:46 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449820
Fl2_inv_pre 197271
Fl2_mul_pre 17092529
Fl2_norm_pre 97118554
Fl2_pow_pre 671601
Fl2_sqr_pre 4910339
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76071
Fl_Flxq_log 35555
Fl_Xp1_powu 0
Fl_to_Flx 21935312
Flm_to_FlxV 2772
FlvV_polint_tree 2587785
Flv_Flm_polint 104562
Flv_inv 1744776
Flv_invVandermonde 153445
Flv_inv_i 1756788
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21049645
Flv_inv_pre_inplace 19327058
Flv_polint 1485487
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745976
Flv_roots_to_pol 842071
Flv_to_Flx 25491014
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 325156
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25999
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 298218
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28990
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171869
FlxV_to_Flm_lg 12971567
FlxV_to_FlxX 397987
FlxV_to_ZXV 609495
FlxV_to_ZXV_inplace 3032554
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846590
Flx_Fl_mul 9423659
Flx_Fl_mul_pre 20199143
Flx_Fl_mul_to_monic 11860729
Flx_Fl_sub 151686
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786275
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170106
Flx_Flxq_eval 791495
Flx_Flxq_eval_pre 2444887
Flx_Frobenius 86619
Flx_Frobenius_pre 13819096
Flx_Laplace 27498
Flx_Newton 54394
Flx_add 73814015
Flx_addmulmul 359027
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527778
Flx_blocks_Flm 12970648
Flx_composedprod 0
Flx_composedsum 27694
Flx_convol 0
Flx_deflate 421328
Flx_deriv 22892593
Flx_diff1 660647
Flx_digits 0
Flx_div_by_X_x 36584657
Flx_divrem 30455905
Flx_divrem_Barrett 605714
Flx_divrem_Barrettspec 907322
Flx_divrem_basecase 61247645
Flx_divrem_pre 78687518
Flx_double 1179459
Flx_equal 26006394
Flx_eval 20419117
Flx_eval2BILspec 603287
Flx_eval_powers_pre 48543121
Flx_eval_pre 136154094
Flx_extgcd 857838
Flx_extgcd_basecase 6184742
Flx_extgcd_halfgcd 126091
Flx_extgcd_pre 6184726
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109541
Flx_gcd 35035593
Flx_gcd_basecase 85816849
Flx_gcd_pre 87474430
Flx_get_red 14507922
Flx_get_red_pre 96926532
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088014
Flx_halfgcd_all_pre 1088016
Flx_halfgcd_pre 873183
Flx_halfres_basecase 1095091
Flx_halfres_i 1115057
Flx_halfres_pre 1043
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160812
Flx_integ 0
Flx_integXn 423382
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134408
Flx_invBarrett_pre 158870
Flx_invLaplace 54671
Flx_is_l_pow 8184
Flx_is_smooth 74256
Flx_is_smooth_pre 118775
Flx_is_smooth_squarefree 126918
Flx_is_squarefree 9207660
Flx_lgrenormalizespec 2136828
Flx_matFrobenius 0
Flx_matFrobenius_pre 86558
Flx_mod_Xn1 31626
Flx_mod_Xnm1 4908327
Flx_mul 26721540
Flx_mul_pre 380243626
Flx_mulhigh_i 950101
Flx_mullimb 1185901600
Flx_mullimb_ok 3345287246
Flx_mulspec 385882143
Flx_mulspec_Kronecker 7371877
Flx_mulspec_basecase 346148229
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10143
Flx_mulspec_mulii_inflate 294042
Flx_mulspec_quartmulii 97166
Flx_neg 4176669
Flx_neg_inplace 1799550
Flx_negspec 4176665
Flx_normalize 64842183
Flx_powu 0
Flx_powu_pre 3980
Flx_recip 0
Flx_recipspec 7291342
Flx_red 1884968
Flx_rem 42231668
Flx_rem_basecase 797223400
Flx_rem_pre 923005608
Flx_renormalize 2163261393
Flx_rescale 1117
Flx_resultant 4609848
Flx_resultant_basecase_pre 14475607
Flx_resultant_pre 14477714
Flx_shift 27403858
Flx_shiftip 628890156
Flx_splitting 147779
Flx_sqr 370321
Flx_sqr_pre 273754036
Flx_sqrspec 274045758
Flx_sqrspec_Kronecker 670340
Flx_sqrspec_basecase 274267073
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2065
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136583117
Flx_subspec 899687
Flx_to_Flv 66651939
Flx_to_FlxX 71405
Flx_to_ZX 38386023
Flx_to_ZX_inplace 36553096
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 663326
Flx_translate1_basecase 675412
Flx_triple 551294
Flx_unscale 0
Flx_val 4468968
Flx_valrem 28483430
Flxn_div 56604
Flxn_div_pre 56631
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75992
Flxn_mul_pre 5183966
Flxn_mulhigh 527697
Flxn_recip 218093
Flxn_red 6368422
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 69412
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779480
Flxq_auttrace_pre 960138
Flxq_auttrace_sqr 652236
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519427
Flxq_inv 335792
Flxq_inv_pre 4183789
Flxq_invsafe 670518
Flxq_invsafe_pre 5326894
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164209
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170646
Flxq_minpoly 45937
Flxq_minpoly_pre 809680
Flxq_mul 18080030
Flxq_mul_pre 190917027
Flxq_norm 443260
Flxq_order 97322
Flxq_pow 933184
Flxq_pow_Frobenius 22192026
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23240586
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232127
Flxq_powers_pre 22443039
Flxq_powu 488372
Flxq_powu_pre 24185404
Flxq_sqr 2763477
Flxq_sqr_pre 272799711
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212275
Flxq_transmul_init 1746342
RgXV_to_FlxV 7
RgX_to_Flx 2209611
Rg_to_F2 1715205
Rg_to_Fl 73086327
Rg_to_Flxq 3461456
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3799237
ZXV_to_FlxV 0
ZX_to_Flx 171081636
Z_mod2BIL_Flx 305856
Z_mod2BIL_Flx_2 308786
Z_mod2BIL_Flx_3 0
Z_to_Flx 7594007
ZpX_invLaplace_init 497
_Fl2_mul 1924167
_Fl2_pow 671597
_Fl2_rand 113826
_Fl2_sqr 4910421
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11779380
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146475109
_Flxq_neg 366572
_Flxq_one 22442631
_Flxq_pow 22184619
_Flxq_powu 68
_Flxq_powu_i 22932857
_Flxq_rand 6569
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266542624
bounded_order 394013
gener_Flxq 7201
get_Fl_threshold 2314577574
get_Flx_red 985983044
get_Flxq_field 68902
get_Flxq_star 283431
init_invlaplace 12514
int_to_Flx 12216
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 21006759
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 5626682
kron_unpack_Flx_bits_wide 5697143
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8476635
mkF2 27666407
monomial_Flx 941328
random_Flx 2646177
set_Flxq 68922
set_Flxq_pre 69169086
translate_basecase 688579
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6406559

Generated by: LCOV version 1.16