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 30371-bd27ad7662) Lines: 2267 2508 90.4 %
Date: 2025-07-06 09:22:54 Functions: 214 224 95.5 %
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
RgXQ_ratlift 112
random_FpX_monic 112
scalar_bezout 112
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 259
RgXY_factor 259
RgXY_squff 259
RgXY_factor_squarefree 273
RgX_Frobenius_deflate 343
fix_pol 343
RgXQ_mul_FpXQXQ 385
gen_cmp_RgXY 385
sturmpart 385
Qi_gcd 399
RgX_disc_i 413
quadratic_to_RgX 420
gbezout 427
gcdext0 427
ok_bloc 434
zero_extgcd 434
Zi_rem 448
Qi_normal 469
polresultant0 504
R_to_Q_down 525
R_to_Q_up 525
RgX_gcd_FpXk 595
RgX_sturmpart 763
RgXQ_inv_i 848
Zi_mul3 896
sturmpart_i 1148
c_zero_gcd 1386
padic_gcd 1435
polresultantext 1463
RgX_extresultant_fast 1568
polresultantext0 1575
isinexactall 2198
RgX_gcd_ZXQX 2261
subresext_i 2346
FlxqV_factorback 2499
cont_gcd_gen 2635
glcm0 2898
RgX_gcd_QXQX 3003
c_is_rational 3269
triv_cont_gcd 3276
glcm 3297
ZV_lcm 3575
fix_lcm 3680
gcdmonome 3717
must_negate 4368
RgX_extgcd_fast 4529
poldisc0 4721
RgX_extgcd 4970
gcd3 6390
RgX_cmbf 6475
vecprod 10003
cont_gcd_rfrac 10115
RgX_liftred 10528
RgX_is_irred 11165
RgX_is_irred_i 11165
polisirreducible 11165
inexact 11424
subres_step 11790
RgXQ_inv_FpXQ 12054
RgXQ_charpoly 13008
RgXQ_charpoly_fast 13008
ZX_content 13146
Q_factor_limit 13791
RgX_factor 13832
row_Q_primpart 17815
Q_factor 21594
ginvmod 35322
RgX_rescale_to_int 37485
factor0 59403
factor 62371
factor_domain 63064
roots_from_deg1 63895
Flv_factorback 108623
RgX_gcd_FpX 111909
polsym 114376
vec_Q_primpart 116743
RgX_disc 124182
RgX_disc_fast 124182
polsym_gen 131792
RgXQ_inv 135258
RgXQ_inv_fast 135258
deg1_from_roots 157141
RgX_resultant_sylvester 169893
RgX_sylvestermatrix 169893
syl_RgM 169900
Fppow 244425
roots_to_pol_r1 264665
RgXQ_mul_FpXQ 274309
syl_RgC 371755
RgXQ_sqr 465934
RgXQ_sqr_fast 465934
Q_div_to_int 490185
Lazard 662797
roots_to_pol_fast 774518
roots_to_pol 774592
RgV_type 774602
RgM_type 784626
RgX_neg_i 898227
nextSousResultant 898228
Lazard2 898229
normalized_to_RgX 1039150
RgXQ_charpoly_i 1228751
RgX_pseudodenom 1314124
RgX_resultant_all 1318722
resultant 1400645
resultant_fast 1400645
init_resultant 1400673
factorback 1497589
RgXQ_mul 1542418
RgXQ_mul_fast 1542418
RgX_type3 1542418
normalized_mul 1719200
Q_content 1843381
cont_gcd_pol 1912226
cont_gcd_pol_i 1912226
cont_gcd 1924955
Z_content_v 2302668
RgX_type 2545495
reductum_lg 2637201
RgX_Rg_mul_i 2643229
primitive_part 2897399
Q_denom 3274432
RgM_rescale_to_int 4705050
ggcd0 5203644
RgX_Rg_type 6064434
RgM_type2 7665732
zero_gcd 8258393
FpV_factorback 8569380
zero_gcd2 8879823
Z_content 9987216
Q_primpart 10031181
Q_divq_to_int 10399560
RgX_gcd 10414761
RgX_gcd_fast 10414761
centermod 11236001
Q_divmuli_to_int 11574224
RgX_type_decode 11719643
gcdiq 12791525
centermod_i 14750273
factorback2 25036307
ggcd 27702223
gcdqq 28367900
gdivexact 28473853
Fpmul 29326375
rescale_init 30061371
RgM_RgC_type 32806797
gen_factorback 33949568
choosesubtype 38389253
RgM_settype 48922623
mul 54745940
Q_denom_v 55614232
Q_remove_denom 57235029
content 72564186
powi 79320112
centermodii 89837736
Q_primitive_part 90707864
Q_muli_to_int 143599451
RgX_type2 150121827
RgX_type_is_composite 163898780
Rg_type 171959090
Q_divi_to_int 173942504
Q_content_v 182065671
Q_denom_safe 251835230
RgC_settype 271118349
choosetype 373717605
RgX_settype 666639195
Q_gcd 1013381868
Q_content_safe 1287815033
settype 3827563437

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