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 30851-7844d7b3a5) Lines: 2553 2925 87.3 %
Date: 2026-05-03 09:26:29 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450240
Fl2_inv_pre 197562
Fl2_mul_pre 17093899
Fl2_norm_pre 97118566
Fl2_pow_pre 672255
Fl2_sqr_pre 4913611
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76085
Fl_Flxq_log 35572
Fl_Xp1_powu 0
Fl_to_Flx 21951262
Flm_to_FlxV 2772
FlvV_polint_tree 2587792
Flv_Flm_polint 104562
Flv_inv 1744767
Flv_invVandermonde 153445
Flv_inv_i 1756780
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9646
Flv_inv_pre_indir 21087236
Flv_inv_pre_inplace 19357464
Flv_polint 1485490
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745970
Flv_roots_to_pol 842052
Flv_to_Flx 25497519
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 26382
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 293137
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 171868
FlxV_to_Flm_lg 12974438
FlxV_to_FlxX 397987
FlxV_to_ZXV 610605
FlxV_to_ZXV_inplace 3032535
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844841
Flx_Fl_mul 9423839
Flx_Fl_mul_pre 20216931
Flx_Fl_mul_to_monic 11863798
Flx_Fl_sub 151819
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786272
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13173115
Flx_Flxq_eval 791478
Flx_Flxq_eval_pre 2444982
Flx_Frobenius 86617
Flx_Frobenius_pre 13828756
Flx_Laplace 27479
Flx_Newton 54389
Flx_add 73820168
Flx_addmulmul 360117
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527488
Flx_blocks_Flm 12973735
Flx_composedprod 0
Flx_composedsum 27700
Flx_convol 0
Flx_deflate 421336
Flx_deriv 22906234
Flx_diff1 660571
Flx_digits 0
Flx_div_by_X_x 36562605
Flx_divrem 30471520
Flx_divrem_Barrett 609574
Flx_divrem_Barrettspec 911373
Flx_divrem_basecase 61307762
Flx_divrem_pre 78750981
Flx_double 1179459
Flx_equal 26071096
Flx_eval 20420276
Flx_eval2BILspec 603321
Flx_eval_powers_pre 48492961
Flx_eval_pre 136184156
Flx_extgcd 859516
Flx_extgcd_basecase 6194247
Flx_extgcd_halfgcd 126132
Flx_extgcd_pre 6194247
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109549
Flx_gcd 35059041
Flx_gcd_basecase 85862444
Flx_gcd_pre 87525720
Flx_get_red 14516350
Flx_get_red_pre 97072822
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088188
Flx_halfgcd_all_pre 1088190
Flx_halfgcd_pre 873432
Flx_halfres_basecase 1095445
Flx_halfres_i 1115614
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160845
Flx_integ 0
Flx_integXn 423356
Flx_invBarrett 0
Flx_invBarrett_Newton 23252
Flx_invBarrett_basecase 134453
Flx_invBarrett_pre 159005
Flx_invLaplace 54633
Flx_is_l_pow 8210
Flx_is_smooth 74256
Flx_is_smooth_pre 118957
Flx_is_smooth_squarefree 127242
Flx_is_squarefree 9221347
Flx_lgrenormalizespec 2147915
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31634
Flx_mod_Xnm1 4907771
Flx_mul 26760163
Flx_mul_pre 380830745
Flx_mulhigh_i 949802
Flx_mullimb 1186441272
Flx_mullimb_ok 3346932231
Flx_mulspec 386469734
Flx_mulspec_Kronecker 7385646
Flx_mulspec_basecase 346551851
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10145
Flx_mulspec_mulii_inflate 294059
Flx_mulspec_quartmulii 98872
Flx_neg 4175396
Flx_neg_inplace 1799912
Flx_negspec 4175397
Flx_normalize 64805162
Flx_powu 0
Flx_powu_pre 3900
Flx_recip 0
Flx_recipspec 7301106
Flx_red 1880418
Flx_rem 42230037
Flx_rem_basecase 797411286
Flx_rem_pre 923557379
Flx_renormalize 2163307161
Flx_rescale 1117
Flx_resultant 4609528
Flx_resultant_basecase_pre 14475233
Flx_resultant_pre 14477390
Flx_shift 27407947
Flx_shiftip 629373023
Flx_splitting 147180
Flx_sqr 370218
Flx_sqr_pre 274488333
Flx_sqrspec 274615978
Flx_sqrspec_Kronecker 671991
Flx_sqrspec_basecase 273873590
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136774450
Flx_subspec 903901
Flx_to_Flv 66674212
Flx_to_FlxX 71405
Flx_to_ZX 38409872
Flx_to_ZX_inplace 36588071
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207963
Flx_translate1 663234
Flx_translate1_basecase 675316
Flx_triple 551294
Flx_unscale 0
Flx_val 4465217
Flx_valrem 28460583
Flxn_div 56590
Flxn_div_pre 56617
Flxn_exp 0
Flxn_expint 109537
Flxn_inv 1037
Flxn_mul 75984
Flxn_mul_pre 5183608
Flxn_mulhigh 527429
Flxn_recip 218022
Flxn_red 6367272
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 69426
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 779952
Flxq_auttrace_pre 960784
Flxq_auttrace_sqr 652702
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519449
Flxq_inv 335792
Flxq_inv_pre 4183825
Flxq_invsafe 670695
Flxq_invsafe_pre 5334750
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 170646
Flxq_minpoly 45944
Flxq_minpoly_pre 809898
Flxq_mul 18080005
Flxq_mul_pre 191292453
Flxq_norm 443245
Flxq_order 97322
Flxq_pow 933216
Flxq_pow_Frobenius 22306633
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23355245
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 232117
Flxq_powers_pre 22460399
Flxq_powu 488488
Flxq_powu_pre 24196965
Flxq_sqr 2763487
Flxq_sqr_pre 273506816
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23109
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213498
Flxq_transmul_init 1746835
RgXV_to_FlxV 7
RgX_to_Flx 2210267
Rg_to_F2 1715095
Rg_to_Fl 73090518
Rg_to_Flxq 3465576
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798091
ZXV_to_FlxV 0
ZX_to_Flx 171166530
Z_mod2BIL_Flx 305873
Z_mod2BIL_Flx_2 308803
Z_mod2BIL_Flx_3 0
Z_to_Flx 7610144
ZpX_invLaplace_init 504
_Fl2_mul 1925515
_Fl2_pow 672244
_Fl2_rand 113876
_Fl2_sqr 4913550
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11783075
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146765831
_Flxq_neg 366572
_Flxq_one 22458033
_Flxq_pow 22299225
_Flxq_powu 68
_Flxq_powu_i 22943442
_Flxq_rand 6573
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267182915
bounded_order 394031
gener_Flxq 7201
get_Fl_threshold 2317798197
get_Flx_red 986601706
get_Flxq_field 68902
get_Flxq_star 283454
init_invlaplace 12521
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 109095
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21036260
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 5640783
kron_unpack_Flx_bits_wide 5699174
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8493009
mkF2 27671943
monomial_Flx 941576
random_Flx 2647071
set_Flxq 68922
set_Flxq_pre 69312050
translate_basecase 688489
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6396108

Generated by: LCOV version 1.16