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 30613-2b070936c6) Lines: 2553 2925 87.3 %
Date: 2026-01-15 09:21:54 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 1116
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2069
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 3892
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6550
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8105
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10126
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12213
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23158
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27344
Flx_composedsum 27550
FlxV_composedsum 28958
Flx_translate1_basecase 29202
Flx_mod_Xn1 31511
FlxV_Flc_mul 34482
Fl_Flxq_log 35555
Flxq_sqrtl_spec_pre 37665
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47316
Flv_inv_indir 52214
kron_pack_Flx_spec 53168
Flx_Newton 54097
Flx_invLaplace 54366
Flxn_div 55183
Flxn_div_pre 55195
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69451
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75840
Fl2_sqrtn_pre 76021
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86567
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104559
Flxq_autsum_sqr 105110
int_to_Flx_quart 107384
Flx_fromNewton 109394
Flxn_expint 109402
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113797
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 117705
Flx_is_smooth_squarefree 125840
Fl2_norm_pre 127589
Flx_invBarrett_basecase 134390
Flx_extgcd_halfgcd 146650
Flx_splitting 147151
Flx_Fl_sub 151682
Flv_invVandermonde 153445
Flx_invBarrett_pre 158848
Flx_inflate 160116
Flxq_log 164210
Flxq_matrix_pow_pre 170658
FlxV_to_Flm 171869
Fl2_inv_pre 197081
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210713
Flxn_recip 217372
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232032
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
FlxT_red 292589
Flx_mulspec_mulii_inflate 294046
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
FlxC_eval_powers_pre 325152
Flxq_inv 335772
Flx_sqr 354649
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395371
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416798
Flx_deflate 420778
Flx_integXn 422735
Flxq_norm 443134
Fl2_equal1 449551
Flx_to_int_halfspec 468590
Flxq_powu 488337
int_to_Flx_half 507058
Flxn_mulhigh 516969
Flx_blocks 517039
Flxq_easylog 519351
Flx_eval2BILspec 603295
Flx_divrem_Barrett 604151
FlxV_to_ZXV 606761
Flxq_auttrace_sqr 652796
Flxq_invsafe 670427
_Fl2_pow 671185
Fl2_pow_pre 671205
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 694998
Flxq_auttrace_mul 780091
Flx_Flxq_eval 791312
Flxq_minpoly_pre 809692
Flv_roots_to_pol 841991
Flx_extgcd 856681
Flx_halfgcd_pre 873361
Flx_subspec 897979
Flx_divrem_Barrettspec 905468
Flx_mulhigh_i 938788
monomial_Flx 941445
Flxq_pow 948310
Flxq_auttrace_pre 959854
Flx_triple 1049261
Flx_halfgcd_all_i 1126950
Flx_halfgcd_all_pre 1126955
Flx_halfres_basecase 1134023
Flx_halfres_i 1153993
_Flxq_rmul 1461838
Flv_polint 1485177
_Flxq_red 1550928
Rg_to_F2 1710110
Flv_inv 1744448
Flv_producttree 1745651
Flxq_transmul_init 1746704
Flv_inv_i 1756460
Flx_neg_inplace 1777875
Flx_Flv_multieval_tree 1785954
Flx_red 1878527
_Fl2_mul 1923178
Fl2_mul_pre 1952193
Flx_lgrenormalizespec 2133180
RgX_to_Flx 2249942
Flxq_div_pre 2416845
Flx_double 2443925
Flx_Flxq_eval_pre 2444603
FlvV_polint_tree 2587193
random_Flx 2646153
Flxq_sqr 2763154
FlxV_to_ZXV_inplace 3031513
Flx_negspec 3263970
Flx_neg 3263980
Rg_to_Flxq 3588158
Flx_addshift 3724675
ZXT_to_FlxT 3812669
Flxq_transmul 4213437
Flxq_inv_pre 4286489
Flx_val 4468580
Flx_resultant 4733861
Fl2_sqr_pre 4906476
_Fl2_sqr 4906519
Flx_mod_Xnm1 4907432
Flxn_mul_pre 5159836
Flxq_invsafe_pre 5429488
kron_unpack_Flx_bits_narrow 5656219
kron_unpack_Flx_bits_wide 5668427
Flx_extgcd_basecase 6286152
Flx_extgcd_pre 6286153
Flxn_red 6330839
zx_to_Flx 6404020
Flx_addspec 7250880
Flx_recipspec 7288289
mkF2 7318732
Flx_Fl_mul 7326771
Flx_mulspec_Kronecker 7346157
Z_to_Flx 7556513
maxbitcoeffpol 8475337
Flx_is_squarefree 9180567
Flx_Fl_add 9842631
_Flx_mul 11772063
Flx_Fl_mul_to_monic 11855240
Flx_blocks_Flm 12966985
FlxV_to_Flm_lg 12967536
Flx_FlxqV_eval_pre 13166299
Flxq_mul 13192564
Flx_Frobenius_pre 13811460
Flx_get_red 14502706
Flx_resultant_basecase_pre 14599175
Flx_resultant_pre 14601071
Flx_Fl_mul_pre 18289332
Flv_inv_pre_inplace 19410641
Flx_eval 20433372
kron_pack_Flx_spec_bits 20980151
Flv_inv_pre_indir 21143582
Fl_to_Flx 21930961
Flxq_powers_pre 22435081
_Flxq_one 22435105
_Flxq_pow 22514281
Flxq_pow_Frobenius 22521689
_Flxq_powu_i 22920218
Flx_deriv 22981700
Flxq_pow_pre 23585275
Flxq_powu_pre 24173156
Flv_to_Flx 25485987
Flx_equal 27013874
Flx_shift 27380274
Flx_mul 27805008
Flx_valrem 28446647
Flx_divrem 30448090
Flx_gcd 35013848
Flx_div_by_X_x 36540118
Flx_to_ZX_inplace 36569106
Flx_to_ZX 38297520
Flx_rem 42220260
Flx_eval_powers_pre 48532199
Flx_divrem_basecase 62277639
Flx_normalize 64780562
Flx_add 66092440
Flx_to_Flv 66642319
set_Flxq_pre 69494045
Rg_to_Fl 73209088
Flx_divrem_pre 79719084
Flx_gcd_basecase 85762890
Flx_gcd_pre 87422629
Flx_get_red_pre 97241289
Flx_eval_pre 136188049
Flx_sub 138629420
_Flxq_mul 147053558
ZX_to_Flx 171015368
Flxq_mul_pre 188258546
_Flxq_sqr 267295914
Flxq_sqr_pre 275192082
Flx_sqrspec_basecase 275546557
Flx_sqr_pre 276151175
Flx_sqrspec 276268374
Flx_mulspec_basecase 347295625
Flx_mul_pre 379404607
Flx_mulspec 384987513
Flx_shiftip 632011474
Flx_rem_basecase 798965839
Flx_rem_pre 922927767
get_Flx_red 986947062
Flx_mullimb 1188812036
Flx_renormalize 2150739248
get_Fl_threshold 2325966974
Flx_mullimb_ok 3364168820

Generated by: LCOV version 1.16