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 - polarit2.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30674-be81ecfdd4) Lines: 2270 2515 90.3 %
Date: 2026-02-10 09:23:17 Functions: 215 225 95.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Q_mul_to_int 0
RgXQ_sqr_FpXQXQ 0
RgX_chinese_coprime 0
RgX_extgcd_simple 0
RgX_gcd_simple 0
RgX_halfgcd 0
RgX_halfgcd_all_FpXQX 0
pol_approx0 0
s_centermod 0
subresext 0
RgXQ_inv_FpXQXQ 7
RgX_extgcd_FpXQX 7
RgX_gcd_FpXQX 7
reduceddiscsmith 7
roots_to_pol_FqV 7
scalar_res 7
sylvestermatrix 7
FqV_factorback 14
RgXQ_charpoly_FpXQ 14
RgXQ_sqr_FpXQ 14
RgX_halfgcd_all_i 14
roots_to_pol_FpV 14
CX_factor 21
RgX_resultant_FpXQX 21
RX_factor 28
RgX_disc_FpXQX 28
RgX_halfgcd_all_FpX 28
RgX_resultant_FpX 28
newtonpoly 28
resultant2 28
Qi_factor_p 42
RgX_disc_FpX 42
Qi_factor 49
Qi_primpart 49
polfromroots 56
RgX_halfgcd_all 63
RgX_halfgcd_all_fast 63
zero_bezout 63
Qi_primpart_try 70
RgX_extresultant_FpX 77
Qi_cmp 91
ghalfgcd 91
RgX_fix_quadratic 98
fix_lcm 105
RgXQ_ratlift 112
scalar_bezout 112
random_FpX_monic 119
caract_const 126
RgX_extgcd_FpX 133
qgcd 154
primpart 161
RgV_type2 203
gc_gcdext 217
rnfcharpoly 224
RgXQ_factor 252
RgXQ_factor_i 252
FE_matconcat 266
RgXY_factor 266
RgXY_squff 266
RgXY_factor_squarefree 280
RgX_Frobenius_deflate 329
fix_pol 343
RgXQ_mul_FpXQXQ 385
sturmpart 385
Qi_gcd 399
gen_cmp_RgXY 399
RgX_disc_i 413
quadratic_to_RgX 420
Zi_rem 427
gbezout 427
gcdext0 427
zero_extgcd 434
ok_bloc 455
Qi_normal 469
polresultant0 504
R_to_Q_down 525
R_to_Q_up 525
RgX_gcd_FpXk 602
RgX_sturmpart 763
RgXQ_inv_i 848
Zi_mul3 854
sturmpart_i 1148
c_zero_gcd 1400
polresultantext 1463
RgX_extresultant_fast 1568
polresultantext0 1575
isinexactall 2184
RgX_gcd_ZXQX 2261
subresext_i 2346
FlxqV_factorback 2499
cont_gcd_gen 2635
padic_gcd 2726
glcm0 2898
RgX_gcd_QXQX 3003
c_is_rational 3255
triv_cont_gcd 3276
glcm 3297
ZV_lcm 3577
gcdmonome 3689
must_negate 4368
RgX_extgcd_fast 4529
poldisc0 4721
RgX_extgcd 4970
gcd3 6390
RgX_cmbf 6643
_lcmii 8145
vecprod 10003
cont_gcd_rfrac 10115
RgX_liftred 10528
RgX_is_irred 11165
RgX_is_irred_i 11165
polisirreducible 11165
inexact 11410
subres_step 11790
RgXQ_inv_FpXQ 12054
RgXQ_charpoly 12920
RgXQ_charpoly_fast 12920
ZX_content 13146
Q_factor_limit 13790
RgX_factor 13853
Q_factor 21625
ginvmod 35231
RgX_rescale_to_int 37485
factor0 59410
factor 62378
factor_domain 63092
row_Q_primpart 63763
roots_from_deg1 63896
Flv_factorback 108623
RgX_gcd_FpX 108808
polsym 114135
vec_Q_primpart 121077
RgX_disc 124189
RgX_disc_fast 124189
polsym_gen 131551
RgXQ_inv 135258
RgXQ_inv_fast 135258
Lazard 137738
deg1_from_roots 157204
RgX_resultant_sylvester 169935
RgX_sylvestermatrix 169935
syl_RgM 169942
Fppow 244859
roots_to_pol_r1 264533
RgX_pseudodenom 271486
RgXQ_mul_FpXQ 274309
Lazard2 298237
RgX_neg_i 298237
nextSousResultant 298237
RgX_resultant_all 304449
syl_RgC 371797
RgXQ_sqr 465858
RgXQ_sqr_fast 465858
Q_div_to_int 515474
roots_to_pol_fast 776682
roots_to_pol 776756
RgV_type 776766
RgM_type 830571
reductum_lg 891897
RgX_Rg_mul_i 893828
normalized_to_RgX 1041178
RgXQ_charpoly_i 1228421
resultant 1400359
resultant_fast 1400359
init_resultant 1400388
factorback 1476436
RgX_type3 1542244
RgXQ_mul 1542245
RgXQ_mul_fast 1542245
normalized_mul 1720958
Q_content 1843556
cont_gcd_pol 1912296
cont_gcd_pol_i 1912296
cont_gcd 1925025
Z_content_v 2382058
RgX_type 2474778
primitive_part 2902053
Q_denom 4105937
RgM_rescale_to_int 4709836
ggcd0 5203644
RgX_Rg_type 6070940
RgM_type2 7673580
zero_gcd 8254467
FpV_factorback 8575773
zero_gcd2 8864935
Q_primpart 10069615
Z_content 10259572
Q_divq_to_int 10303408
RgX_gcd 10411719
RgX_gcd_fast 10411719
centermod 11242822
Q_divmuli_to_int 11575435
RgX_type_decode 11720574
gcdiq 12795590
centermod_i 14755997
gdivexact 24019686
factorback2 25470536
ggcd 27656996
gcdqq 28386913
Fpmul 29353620
rescale_init 30080704
RgM_RgC_type 33489434
gen_factorback 34392401
choosesubtype 38353505
RgM_settype 49666818
Q_denom_v 55641344
mul 55743549
Q_remove_denom 57261612
content 72564151
powi 80750891
centermodii 89876365
Q_primitive_part 89989929
Q_muli_to_int 143419530
RgX_type2 147311087
RgX_type_is_composite 163896924
Rg_type 171957205
Q_divi_to_int 174789149
Q_content_v 182031799
Q_denom_safe 252761730
RgC_settype 273666597
choosetype 371579111
RgX_settype 660915064
Q_gcd 1014117762
Q_content_safe 1287812000
settype 3821140394

Generated by: LCOV version 1.16