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 30848-b1463d63da) Lines: 2553 2925 87.3 %
Date: 2026-04-30 09:27:33 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449234
Fl2_inv_pre 197041
Fl2_mul_pre 17091480
Fl2_norm_pre 97118576
Fl2_pow_pre 670804
Fl2_sqr_pre 4907523
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76037
Fl_Flxq_log 35574
Fl_Xp1_powu 0
Fl_to_Flx 21928637
Flm_to_FlxV 2772
FlvV_polint_tree 2587634
Flv_Flm_polint 104561
Flv_inv 1744742
Flv_invVandermonde 153445
Flv_inv_i 1756751
Flv_inv_indir 52211
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 20989215
Flv_inv_pre_inplace 19272134
Flv_polint 1485460
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745958
Flv_roots_to_pol 842014
Flv_to_Flx 25497529
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 325159
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26381
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7279
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 295092
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28991
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171864
FlxV_to_Flm_lg 12974189
FlxV_to_FlxX 397987
FlxV_to_ZXV 610604
FlxV_to_ZXV_inplace 3032537
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9847228
Flx_Fl_mul 9423275
Flx_Fl_mul_pre 20215248
Flx_Fl_mul_to_monic 11864352
Flx_Fl_sub 151828
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786254
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13172827
Flx_Flxq_eval 791490
Flx_Flxq_eval_pre 2444979
Flx_Frobenius 86619
Flx_Frobenius_pre 13828921
Flx_Laplace 27491
Flx_Newton 54397
Flx_add 73787773
Flx_addmulmul 360111
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527600
Flx_blocks_Flm 12973573
Flx_composedprod 0
Flx_composedsum 27703
Flx_convol 0
Flx_deflate 421319
Flx_deriv 22904985
Flx_diff1 660534
Flx_digits 0
Flx_div_by_X_x 36530013
Flx_divrem 30471146
Flx_divrem_Barrett 610127
Flx_divrem_Barrettspec 912095
Flx_divrem_basecase 61305534
Flx_divrem_pre 78746605
Flx_double 1179459
Flx_equal 27589668
Flx_eval 20393665
Flx_eval2BILspec 603317
Flx_eval_powers_pre 48517105
Flx_eval_pre 136121649
Flx_extgcd 859522
Flx_extgcd_basecase 6194203
Flx_extgcd_halfgcd 126133
Flx_extgcd_pre 6194201
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109552
Flx_gcd 35037543
Flx_gcd_basecase 85844475
Flx_gcd_pre 87495156
Flx_get_red 14516495
Flx_get_red_pre 98532928
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088426
Flx_halfgcd_all_pre 1088431
Flx_halfgcd_pre 873411
Flx_halfres_basecase 1095688
Flx_halfres_i 1115852
Flx_halfres_pre 1044
Flx_halfres_split 20165
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160379
Flx_integ 0
Flx_integXn 423403
Flx_invBarrett 0
Flx_invBarrett_Newton 23250
Flx_invBarrett_basecase 134448
Flx_invBarrett_pre 158999
Flx_invLaplace 54671
Flx_is_l_pow 8181
Flx_is_smooth 74256
Flx_is_smooth_pre 118531
Flx_is_smooth_squarefree 126700
Flx_is_squarefree 9220920
Flx_lgrenormalizespec 2149261
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31632
Flx_mod_Xnm1 4908529
Flx_mul 26765720
Flx_mul_pre 383588532
Flx_mulhigh_i 949938
Flx_mullimb 1186155697
Flx_mullimb_ok 3397591418
Flx_mulspec 389229667
Flx_mulspec_Kronecker 7385392
Flx_mulspec_basecase 349418732
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10131
Flx_mulspec_mulii_inflate 294057
Flx_mulspec_quartmulii 98882
Flx_neg 4175833
Flx_neg_inplace 1799912
Flx_negspec 4175819
Flx_normalize 64842153
Flx_powu 0
Flx_powu_pre 3929
Flx_recip 0
Flx_recipspec 7302227
Flx_red 1882157
Flx_rem 42216960
Flx_rem_basecase 802022400
Flx_rem_pre 928098458
Flx_renormalize 2173305425
Flx_rescale 1117
Flx_resultant 4609807
Flx_resultant_basecase_pre 14475242
Flx_resultant_pre 14477403
Flx_shift 27405770
Flx_shiftip 633937869
Flx_splitting 147437
Flx_sqr 370263
Flx_sqr_pre 275536122
Flx_sqrspec 275798434
Flx_sqrspec_Kronecker 672012
Flx_sqrspec_basecase 275950218
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136775838
Flx_subspec 904378
Flx_to_Flv 66670899
Flx_to_FlxX 71405
Flx_to_ZX 38410164
Flx_to_ZX_inplace 36584680
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207984
Flx_translate1 663197
Flx_translate1_basecase 675301
Flx_triple 551294
Flx_unscale 0
Flx_val 4468659
Flx_valrem 28463627
Flxn_div 56583
Flxn_div_pre 56606
Flxn_exp 0
Flxn_expint 109556
Flxn_inv 1037
Flxn_mul 75994
Flxn_mul_pre 5183150
Flxn_mulhigh 527486
Flxn_recip 218034
Flxn_red 6367795
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 69427
Flxq_autpow_sqr 47278
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112115
Flxq_autsum_pre 98579
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779818
Flxq_auttrace_pre 960754
Flxq_auttrace_sqr 652580
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519467
Flxq_inv 335792
Flxq_inv_pre 4183839
Flxq_invsafe 670661
Flxq_invsafe_pre 5334702
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170651
Flxq_minpoly 45944
Flxq_minpoly_pre 809907
Flxq_mul 18080022
Flxq_mul_pre 194191308
Flxq_norm 443253
Flxq_order 97322
Flxq_pow 933261
Flxq_pow_Frobenius 23768293
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24816965
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232116
Flxq_powers_pre 22458380
Flxq_powu 488500
Flxq_powu_pre 24194726
Flxq_sqr 2763482
Flxq_sqr_pre 274568697
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23108
Flxq_sqrtn_spec_pre 21914
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213242
Flxq_transmul_init 1746804
RgXV_to_FlxV 7
RgX_to_Flx 2210276
Rg_to_F2 1715137
Rg_to_Fl 73090210
Rg_to_Flxq 3465681
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798637
ZXV_to_FlxV 0
ZX_to_Flx 171165017
Z_mod2BIL_Flx 305871
Z_mod2BIL_Flx_2 308801
Z_mod2BIL_Flx_3 0
Z_to_Flx 7609993
ZpX_invLaplace_init 504
_Fl2_mul 1923123
_Fl2_pow 670798
_Fl2_rand 113819
_Fl2_sqr 4907551
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11771147
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149688541
_Flxq_neg 366572
_Flxq_one 22458495
_Flxq_pow 23760886
_Flxq_powu 68
_Flxq_powu_i 22940740
_Flxq_rand 6571
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268276555
bounded_order 394024
gener_Flxq 7201
get_Fl_threshold 2331196483
get_Flx_red 991145053
get_Flxq_field 68902
get_Flxq_star 283453
init_invlaplace 12521
int_to_Flx 12213
int_to_Flx_half 507058
int_to_Flx_quart 109101
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21035973
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 5642558
kron_unpack_Flx_bits_wide 5696835
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8493630
mkF2 27662614
monomial_Flx 941550
random_Flx 2647033
set_Flxq 68922
set_Flxq_pre 70770414
translate_basecase 688469
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6400073

Generated by: LCOV version 1.16